Molecular visualization Off-Line and On-Line : spiderGL, a JavaScript 3D Graphics library which relies on WebGL for realtime rendering

http://spidergl.org/index.php

code: http://spidergl.org/js/spidergl.js
http://sourceforge.net/projects/spidergl/

GALLERY:
http://spidergl.org/code.php

1/ Web application, a shader authoring tool:

http://spidergl.org/meshade/index.html
code generation
(input just a mesh, file= .obj)

VERY GOOD.

Try it online or download the zipped archive (an HTTP server is needed):

http://spidergl.org/meshade/meshade.zip

2/ Visualization Methods for Molecular Studies on the Web Platform

http://vcg.isti.cnr.it/Publications/2010/CADZS10/

Standard representation of molecular surface properties using color ramps and field lines (leftmost), the same properties drawn using complex shading techniques (center) and the electrical interaction of two proteins (rightmost), rendered on a Web Page by using SpiderGL and WebGL.

Molecular visualization Off-Line and On-Line

The solution of the 3D structure of myoglobin in 1958 by Kendrew [Kendrew et al. 1958] marked the beginning of the new era of protein structural biology. Since then, a large number of protein structures have been solved and today the Protein Data Bank counts over 60.000 entries [Berman et al. 2003]. With the availability of all these data and the advance of computer graphics technologies, many research groups have developed tools for the manipulation and visualization of 3D structures such as VMD [Humphreyet al. 1996], SPDBViewer [Guex and Peitsch 1997], Chimera [Pettersen et al. 2004] and PyMOL [Delano 2002]. Beside working on the atomic structure, most programs can nowadays also calculate surface features such as electrostatic potential (using, for example, tools like APBS [Baker et al. 2001] or DelPhi [Rocchia et al. 2002]) and hydropathy [Kyte and Doolittle 1982].

In addition to the many standalone visualization tools, there are also web viewers especially designed for molecular structures, such as Jmol [jmo 2002] and MDL Chime, which represent a simple way
to visualize molecules directly on browser. MDL Chime, used by the Protein Explorer website was gradually phased out in favor of Jmol, which is nowadays the most used plugin for molecular visualization, used by websites such as Proteopedia and RCSB PDB Protein Data Bank.
Following the advance of techniques for the generation of CG movies, in the last few years many different groups focused on the creation of animated movies depicting biological molecules and
cellular processes. The movies range from the simple representations of the mechanical functioning of a single protein, to complex events involving many subjects. These works are important scientific efforts and add to their educational value the bonus of rising interest in the general public to approach biology. Some of these examples are collected on websites [McGill 2010; SCIVIS 2005].

3D Content on Web

The Virtual Markup Modeling Language (VRML) [Raggett 1994] (then replaced by X3D [Don Brutzmann 2007]) was proposed as a text based format for specifying 3D scenes in terms of geometry and material properties and for the definition of basic user interaction. The format itself was a standard, but the rendering in the web browser was relaying on specific plugins. The Java Applets are probably the most used method to add dynamic content, not necessarily 3D, in the web browsers. The
philosophy of Java applets is that the URL to the applet and its data are put in the HTML page and then executed by the Java Virtual Machine, a third part component. The implementation of JVM
on all the operating systems made Java applets ubiquitous and the introduction of binding to OpenGL such as JOGL [JOG ] added control on the 3D graphics hardware. A similar idea lies behind the
ActiveX [Microsoft Corporation 1996] technology, developed by Microsoft from 1996. Unlike Java Applets, ActiveX controls are not bytecode but dynamic linked Windows libraries which share
the same memory space as the calling process (i.e. the browser), and so much faster to execute. These technologies enable the incorporation of 3D graphics in a web page but they all do it by handling
a special element of the page itself with a third party component.


WebGL [Group 2009b] is an API specification produced by the Khronos group [Group 2009a] and, as the name suggests, defines the JavaScript analogous of the OpenGL API for C++. WebGL
closely matches OpenGLjES 2.0 and, extremely important, uses GLSL as the language for shader programs, which means that the shader core of existent applications can be reused for their
JavaScript/WebGL version. Since WebGL is a specification, it is up to the web browsers developer to implement it. At the time of this writing, WebGL is supported in the nightly build versions of the most used web browsers (Firefox, Chrome, Safari), and a number of JavaScript libraries are being developed to provide higher level functionalities to create 3D graphics applications. For example WebGLU [DeLillo 2009], which is the WebGL correspondent of GLU [OpenGL ARB ], provides wrappings for placing the camera in the scene or for creating simple geometric primitives, other libraries such as GLGE [Brunt 2010] or SceneJS [Kay 2009] uses WebGL for implementing a scene graph based rendering and animation engines.

Implementation spiderGL

Looking at a webpage with dynamic SpiderGL content, it is possible to see that all of the page logic is defined in the scripting part of the HEAD section, while on the BODY section there is just the page
structure and the interface elements that will be used for user interaction (like buttons, text areas and other controls). Among these elements, the most important is an html canvas object, that is the place where the WebGL layer does the on-screen rendering. ("< " are transformed : "[")

[canvas id="SGL_CANVAS" style="border: 1px solid gray"  width="900" height="600"][/canvas]



This canvas is registered as the output area at the end of the scripting; a specific function connects the various events of the canvas to a script object.


v a r  glMolViewer = new SpiderGLMolViewer ( ) ;
sglRegisterCanvas("SGL_CANVAS" , glMolViewer , 3 0 . 0 ) ;




The glMolViewer object is the main actor for the scene setup and rendering of our molecular visualization. The structure of this object employs the event handling subsystem provided by SpiderGL, which is inspired from the one used by the GLUT library [Kilgard ]. Each event coming from the canvas triggers a specific function with a given name and parameters; SpiderGL exploits the JavaScript language feature to give the possibility to dynamically add or remove listeners and redirect events. In this simple example, the only listener is the main object itself. (...)

This development process is straightforward for someone with an experience in graphical programming, while may prove to be difficult for users with a different background, like biology, physics or chemistry. This kind of setup is for sure more difficult to master with respect to setup of other existing platforms, like Jmol which, true to their nature, provide much simpler (but restrictive) access to their scene graph, with specific functions to import data and a series of predefined rendering modes. However, the gain in terms of flexibility and expressive power vastly compensate the initial steeper learning curve. Moreover, the learning of this technology is made easier by the possibility of initially use the higher level structures and functions implemented by SpiderGL to easily setup a basic visualization scheme and then start playing with lower level functions to obtain more complex effects. It is also important to note that most of the available JavaScript utility/UI libraries on the net may be used in conjunction with SpiderGL, adding more ready-made components to assemble a powerful, interactive, webpage.

3/ landscape refelction/refraction on a cup:

http://spidergl.org/example.php?id=12

This example uses how to use cube maps and spherical harmonics to render objects with a natural light effect. GOOD.

4/techno

SpiderGL: A JavaScript 3D Graphics Library for Next-Generation WWW

http://vcg.isti.cnr.it/Publications/2010/DPGS10/

solution of the error "Could Not Save Item": Zotero and Web of science or other Web of Knowledge databases.

Currently Zotero not playing nice with Web of Science, or any of the other Web of Knowledge databases
e.g. error "Could Not Save Item. An error occurred while saving this item. Check Known Translator Issues for more information."

Please go to http://github.com/ajlyon/translators/raw/master/ISI%20Web%20of%20Knowledge.js and save the file to the translators directory of your Zotero data directory (http://www.zotero.org/support/zotero_data).

Restart Firefox, and it should start saving from all WoK/ISI databases. Currently, it saves all of the results for your current query-- that'll change soon, but the courageous can try it out now."

There are unresolved issues that make multiple item saves fail, so this is limited to one item per save at present (DATA@dec 2011).

Ref.
http://forums.zotero.org/discussion/1966/

Machine translation and human translation; Translation service; integration with microsoft word and google docs; French<->English

Three online services (machine translation):

• http://translate.google.fr/
• http://www.microsofttranslator.com/
• http://www.reverso.net/text_translation.aspx?lang=EN

These tools are only for computer-assisted-translation.
Use these three services and compare!

See also this comparison of machine translation applications:
http://en.wikipedia.org/wiki/Comparison_of_machine_translation_applications

---------------word and google docs


Most of users don’t find Google Docs much useful with Microsoft Office (Word 2010 PC and Word 2011 mac) installed in their Computers for creating, editing Word document with multilingual translation/dictionnary services, but  Google Docs lets you translate PDF files (and lets you save translated copy of PDF to your Computer). Google Translator translates up to 8 pages in a document only.
http://techdows.com/2011/09/pdf-files-translation-with-google-docs.html


---------------
http://blogs.msdn.com/b/translation/
Microsoft has released a translation bookmarklet which allows single-click translation of any website in your own browser (DATA@ nov 2011).
http://blog.gts-translation.com/category/translation-software/translation-widgets/
---------------
It is estimated that 125 million native French speakers and 200 million second language French speakers live around the world.


The more people that speak a commonly used language such as French, the greater the demand for services related to that language becomes. The need for good-quality French translation will also continue to rise.

----------------online human translation:

myGengo translation is all done by humans. The one exception is that developers can access machine translation via the API as a free service, however this is explicitly described as such.

We use computer-assisted-translation (CAT) tools to speed up translation and ensure consistency, but the translation is done by a real person.


Ref:
http://mygengo.com/translation-services/comparison-chart/
http://mygengo.com/translation-solutions/french-translation/

How to generate a list of bibliographic references for Wikipedia?

There are two approaches to generate a list of bibliographic references for Wikipedia:
1) Zotero: http://www.zotero.org/support/kb/zotero_and_wikipedia
2) http://reftag.appspot.com/ (from Google Books).


How to:

A) with Zotero or reftag, save direclty to the wikipedia format.


B) and after go to wikipedia 
B-1) for book(s), use "template:Cite book" 
http://en.wikipedia.org/wiki/Template:Cite_book
B-1) use citation templates
http://en.wikipedia.org/wiki/Citation_templates

C) your biblio is OK and with zotero or other similar web services, users can save this list (COinS are generated by wikipedia in your page).

SEE this ex-ample:

http://fr.wikipedia.org/wiki/Publications_Mission_Ressources_et_Comp%C3%A9tences_Technologiques

-------References about the wikipedia file format 
http://en.wikipedia.org/wiki/Wikipedia:Citing_sources#Programming_tools

en français:
http://fr.wikipedia.org/wiki/Cat%C3%A9gorie:Mod%C3%A8le_pour_bibliographie


-----Rem:
Zotero's Quick Copy feature makes it trivial to export Zotero items to Wikipedia. The configuration panel for Quick Copy is found by clicking the gear icon in the Zotero toolbar, choosing Preferences, then selecting the Export tab. If Wikipedia Citation Templates is set as the default output format, you can copy properly formatted templates for selected items to the clipboard by using the keyboard shortcut set in the Shortcut Keys preference pane or by dragging and dropping items directly into a text area on Wikipedia.

google take out: save your Google Profile, stream, +1s, Contacts and circles, Picasa web album, and Voice (and the deprecated buzz service)

Google has launched a new web service entitled Takeout. Take-out is food purchased at a restaurant for the purpose of being eaten elsewhere. This is the same! 
Facebook is not the only online place you store valuable data. You also have important information stored in your Google Profile, stream, +1s, Contacts and circles, Picasa web album, and Voice (and the deprecated buzz service). If want a backup of these online information, take-out is a perfect "one-click service". With Google Takeout, voice mail messages are exported as MP3s, text messages as microformatted HTML, and forwarding phone numbers as a vCard. 
The data is compressed into a ZIP archive and made available for download.

case study: Europe, US and "e-trailblazing" services; list kml tourism file; wikipedia and long-distance paths (LDP); LDP's database; walking, trek, trekking, hiking, rambling, bushwalking, mountain climbing; tracks, line, routes; guidebook;

How to Create a Better Trail Map?
The goal of this post is a brief screening of different approaches about e-services for searching/publishing walking, trek, trekking, hiking, rambling, bushwalking, mountain climbing...
IN RED: my best choices


see also: 
http://ex-ample.blogspot.com/2011/08/virtual-globes-as-hubs-of-knowledge.html
http://ex-ample.blogspot.com/2011/09/list-of-popular-file-formats-and-filter.html
http://ex-ample.blogspot.com/2011/08/geography-gis-google-maps-javascript.html
http://ex-ample.blogspot.com/2011/09/geohack-geonames-8-million-placenames.html
http://ex-ample.blogspot.com/2011/08/comparison-of-google-maps-google-maps.html
http://ex-ample.blogspot.com/2011/08/google-earth-maps-some-gadgets-tools.html
http://ex-ample.blogspot.com/2011/08/comparison-of-maps-servers-and-their.html
http://ex-ample.blogspot.com/2011/08/geo-content-management-system.html


see one of my blog (in french) for micro-local geo-WebServices : http://la-loire.blogspot.com/
There are some of my javascripts...


It is an example of the complex aggregator services.
We have to aggregate SEVEN components of this "GIS-social-geocoding-web mapping": 
A) The global maps/routes/directions SERVERS (http://ex-ample.blogspot.com/2011/08/comparison-of-maps-servers-and-their.html; google maps, Bing Maps, Map Quest, Maps Nokia; Open Street Map) allow 4 services:

1.  online view/manipulate your map/directions (and print)
2. "save/open" with an URL
3. "save" with an iframe (HTML)
4. "save/open" with  HTML+javascript codes (or other "languages" flash, silverlight, javaME...)

Local maps cover only part of the earth surface, and may be more detailed than the global ones:
http://en.wikipedia.org/wiki/List_of_online_map_services


B) We have many geographic information systems software, 
http://en.wikipedia.org/wiki/Comparison_of_geographic_information_systems_software
C) We have many GIS products (GPS, cell phones, cam/apparatus with automatic or semi-automatic geo tag, meteo/climate systems, ...) 
D) geography is a social science then there are many complex metadata. There are a lot of personal pages/sites/blog relating a trek.
E) we already have excellent guidebooks then e-guidebooks must be better or offer different services...
F) official websites: official paths (national and regional) and funded trails organizations
G) laws, all approaches for preserving the natural resources...


-----------
The problem of interoperability is THE big problem of web 2.0 applications/services with User Generated Content, not only in GIS-geocoding-web mapping... (just the routes, no problem: GPX or KML files, but the main problem is all other aspects of a route (culture, point of interest...)
Participatory GIS  is an emergent practice; developing out of participatory approaches to planning and spatial information and communication management. Traditional knowledge GIS could help in debates over land rights and resource management in ecologically sensitive areas. Interests of local residents in these regions often conflict with those of migrant workers, state conservation units, and domestic and foreign mining or logging enterprises.
example: http://www.openstreetmap.org/ (http://en.wikipedia.org/wiki/OpenStreetMap) or WikiMapia (http://www.wikimapia.org/; WikiMapia API: http://www.wikimapia.org/api/) is a online map imaging resource that combines Google Maps with a wiki system (mainly POI and a few trails).
http://wikimapia.org/special_pages/user_reports/?action=show&type=1&id=209&backurl=%26type%3D%26order%3D%26p%3D5

Goodchild, M.F. (2007). "Citizens as sensors: the world of volunteered geography". GeoJournal 69 (4): 211–221; DOI: http://dx.doi.org/10.1007%2Fs10708-007-9111-y

Volunteered Geographic Information is the harnessing of tools to create, assemble, and disseminate geographic data provided voluntarily by individuals. Sites such as Wikimapia and OpenStreetMap are empowering citizens to create a global patchwork of geographic information, while Google Earth and other virtual globes are encouraging volunteers to develop interesting applications using their own data. I review this phenomenon, and examine associated issues: what drives people to do this, how accurate are the results,will they threaten individual privacy, and how can they augment more conventional sources? I compare this new phenomenon to more traditional citizen science and the role of the amateur in geographic observation.

Here i try to show how this problem is complex with an "ex-ample" (case study): management, organization, sharing, writing collaborative e-handbook of walking, trek, trekking, hiking, rambling, bushwalking, mountain climbing... Definition of trek: http://oxforddictionaries.com/definition/trek


The question is how to perform "e-trailblazing" with the best collaborative content management and multipath/pointOfInterest saving/searching/publishing?

There are many methods used for blazing trails http://en.wikipedia.org/wiki/Trail_blazing. Moreover blaze type might also be mixed when different user groups (horse riders, mountain bikers, snowmobilers...) are on the same trail.
There are many methods used for e-trailblazing: compare the choice of french GR (Long Distance Footpaths Network)  http://www.gr-infos.com/gr-en.htm and the choice of german Long Distance Footpaths Network http://www.wanderbares-deutschland.de/ and the excellent choice of the UK Searchable LDP's Database http://www.ldwa.org.uk/ldp/members/ldp_members_home.php.

The guidebooks are still the best way to prepare a Long or One-day Distance Footpaths. They contains not only the path/elevation data/maps but also many metadata (tourisme, guesthouse, shelders, laws, toilets (in urban trip), prices of parcs, museum...). Everytrail offers many e-guides (Mobile Travel Guides): http://www.everytrail.com/guides
try these three guides in Paris (only 3; DATA @ august 2011), availables for iphone and android:
http://www.everytrail.com/guide/a-rambling-in-paris-marais-to-the-latin-quarter
http://www.everytrail.com/guide/paris-family-friendly-12th-arondissement
http://www.everytrail.com/guide/jardin-des-plantes-menagerie

some wikipedia articles are e-guidebooks, see "wikipedia" below.

google earth and kml add-ons:
http://www.google.com/gadgets/directory?synd=earth&preview=on&cat=travel_short&sort-order=desc
http://mw2.google.com/mw-earth-vectordb/gallery_website/en/100Percent_Pure_New_Zealand.kml
(only guide; no map)
http://mw2.google.com/mw-earth-vectordb/gallery_website/en/Japan_Tourism.kml
(guide and maps)
http://mw2.google.com/mw-earth-vectordb/gallery_website/en/Egypt_Tourism.kml
(a little guide, no maps)
http://mw2.google.com/mw-earth-vectordb/gallery_website/en/South_Africa_Tourism.kml
(many waypoints but only one link to home of sud-africa tourism sites)

some sites:

1) http://www.gpx-view.com/
 you can upload your files (.GPX or .TRK from  CompeGPS) and save trails (.GPX or .KML).
Good "one-click service" to add a trail if you have found GPX file link.
2) http://www.bikely.com; You dowload GPX or KML or you can embed on you blog.
3) http://www.utagawavtt.com/
4) http://www.openrunner.com/ many tools (but only for routes).



-------------Europe; differences between states 
In Europe (http://www.era-ewv-ferp.com/) there are many differences of this "geo-social domain".
 for european long-distance trails, see http://www.era-ewv-ferp.com/?page_id=29 and "wikipedia" below.

France has an extensive network of footpaths throughout the country. More than 60000 km of long distance footpaths and 120000 km of local footpaths have been created with IGN maps and many guidebooks. The Fédération Francaise de la Randonnée Pédestre (FFRP) is the organization behind the long distance footpaths - les sentiers de grande randonnée (GR) which exist all over the country (see below).
FFRP, representing 1600 walking clubs, publishes more than 150 guidebooks (topoguides des sentiers de grande randonnée).
It has standardized guidebooks and trailblazing (white-redmarked trail):  http://www.ffrandonnee.fr/_130/le-balisage-des-itineraires-de-randonnee.aspx (only in french).

some sites:
a) http://www.sportdistancecalculator.com/ or in french: http://www.calculitineraires.fr/
(import GPX), TCX (Garmin);  save/export: KML, GPX, CSV (spreadsheet) or iframe; save on the server with Id number; comments). 122 000 foot/bike-paths @ august, 2011. See this example: http://www.calculitineraires.fr/index.php?id=111653#map
quite good search function (from the map of France) but some trails are not found on the map (example this "111653").

b) http://www.gr-infos.com/gr-en.htm: The Long Distance Footpaths Network.
this site: just list of Guesthouses, Shelters, and the Footpath.
example: http://www.gr-infos.com/gr7c.htm
For each map it offers many links:
i)googlemaps (you can save comment, download the kml file, "plusOne" button)
ii)googleEarth: only download kml file
iii)wikiloc; example: http://fr.wikiloc.com/wikiloc/view.do?id=1160627
Wikiloc offers the choice of map servers directly in the google maps
world wikiloc= 420000 trails (data @ august 2011).
iv) everytrail; example: http://www.everytrail.com/view_trip.php?trip_id=804638
it offers dynamic elevation (maps and elevation chart use flash player.),  hiking trip planning tool.
v) randogps: http://www.randogps.net/; example: http://www.randogps.net/randonnee-pedestre-gps-loire-42.php?num=3
position of IGN maps on google Maps: http://www.randogps.net/carte-ign-randonnee-pedestre.php?dep=42&libel=loire

Some "offices de tourisme" have shared trails on  everytrail: http://www.besancon-tourisme.com/circuits-et-parcours-de-randonnees.html but there is no standardization...

some links:
http://googlesightseeing.com/countries/continents/europe/france/
http://explorer.altopix.com/maps/251/2/France/

some sites (site de "partage d'itinéraire"):
1) http://www.gpx-view.com/; http://www.france-randos.com/balades_et_randonnees_dans_la_loire.ws (only in french). The maps are embed with http://www.gpx-view.com/
 you can upload your files (.GPX or .TRK from  CompeGPS) and save trails (.GPX or .KML).
see the full map of France: http://www.gpx-view.com/gpxMap.php
It's a quite good site (only in french): many choices (google maps, earth or geoportail).
8200 trails (DATA@sept 2011).
Good "one-click service" to add a trail if you have found GPX file link.
2) http://la-trace.com/ (only in french and only VTT): 366 VTT routes (DATA@sept 2011)
3) http://www.bikely.com/listpaths/country/82, (82: France, you can also choose the region): 3700 bicycle routes in France (DATA@sept 2011). You dowload GPX or KML or you can embed on you blog.
4) http://www.utagawavtt.com/  4772 VTT routes (DATA@sept 2011)
5) http://www.openrunner.com/ many tools but in fact only for routes.

Germany : the Verband Deutscher Gebirgs- und Wandervereine – Deutscher Wanderverband - is the organization of almost 56 large associations.
only in german: on the website http://www.wanderbares-deutschland.de/ 90 among the most outstanding paths  in Germany are described in detail (with google maps API). VERY GOOD SITE (but no collaborative functions). You can find all necessary information at a glance: a path description, its length and height profile, maps of single routes as well as the addresses of the competent tourist organizations and ramblers’ associations...

Great Britain:
England and Wales have 225 000 Km (140,000 miles) of off-road routes classed as Public Rights of Way. These are short local off-road routes that everyone has a right to use even where they cross private land, and they are protected by local authorities (although some of them may be illegally blocked). They should be signed at junctions with public roads. Many are also signed or "waymarked" with coloured arrows along the route itself. Footpaths are open only to walkers, and may be waymarked with yellow arrows. In addition to rights of way, where you only have a right to walk along the path itself, there are over 1.4 million ha of "access land" where you have a right to walk freely. This land is mainly open country: mountain (over 600m), moor, heath, down and common land. The exact areas covered are shown on official maps.
Scotland has a general right of access to most land, even farmland, so long as you behave responsibly.
Recognised signed recreational paths and trails (including long distance paths), have developed rather differently in Britain than in many other European countries, partly because walking organizations have historically campaigned for more general local access rights. The Long Distance Walkers Association keeps records of all trails over 30 Km long, and documents these in 2 publications, The Long Distance Walker’s Handbook and The Long Distance Path Chart.
National Trails (the best maintained trails in England and Wales) have special legal status and receive funding from central government agencies.  They are signed with an acorn logo.  There are 15 such trails with a total length of 4000 Km. Scotland’s Great Trails are a suite of 20 nationally promoted longer distance routes in Scotland. Each of these trails is individually waymarked, and collectively branded with the thistle logo.  They extend to over 2000 Km.
http://www.nationaltrail.co.uk/
http://www.snh.gov.uk/

Searchable LDP's Database (LDP=Long-Distance Paths):
This website includes a searchable database of over 1 200 UK paths and trails (covering more than 70 000 miles). Path information includes maps, publications, and accommodation near the path:
http://www.ldwa.org.uk/ldp/members/ldp_members_home.php
Some of the LDP pages use interactive maps built around the OpenSpace service provided by the Ordnance Survey.
example: http://www.ldwa.org.uk/ldp/members/show_path.php?menu_type=S&path_name=Cotswold+Way+National+Trail
http://www.ldwa.org.uk/ldp/members/show_path_map.php?path_name=Cotswold+Way+National+Trail

Group Walks Finder (with many search options):
http://www.ramblers.org.uk/areas_groups/groupswalksfinder
http://www.ramblers.co.uk/map-both/#/map?map=true&zoom=5&long=-1.668&lat=53.214

Belgium: there is a network of long distance footpaths, covering the whole country 5000 km white-redmarked trails exist. Parts of these are extensions of the border- crossing GR 5 and GR 12 (see France). Guidebooks (topogidsen in Flemish and topoguides in French) can be ordered from Grote Routepaden (http://www.groteroutepaden.be/) and Sentiers de Grande Randonnée (S.G.R.; http://www.grsentiers.org/) which are responsible for the network of footpaths in Flanders and Wallonia respectively.
http://www.groteroutepaden.be/
http://www.grsentiers.org/grcarte.htm

Spain: footpaths (senderos) exist in mountaineous areas (the Pyrenees, Catalonia, the Basque country, the Sierra Nevada, the Picos de Europa). Long distance footpaths are called Senderos de Gran Recorriido (GR).
english: http://www.fedme.es/?action=seccion.seccion&subseccion=282
http://www.fedme.es/?action=buscadores.buscador_senderos

Portugal: http://www.igeoe.pt/
http://igeoe-wservices.igeoe.pt/Fronteira/
http://www.igeoe.pt/igeoearcweb/igeoesig/default.asp

Poland: there are about 65000 Km of marked footpaths. About 11500 Km are in the mountains and under the responsibility of the Polish Tourist Association (PTTK).
http://www.cotg.pttk.pl/szlaki.php

Netherlands: a network of more than 35 long distance footpaths (from 60 to 400 Km). The total network is more than 6000 km. Some of the paths are long distance footpaths (lange- afstand wandelpaden) and others are regional (streekpaden). In cooperation with the organisation which coordinates these footpaths (wandelplatform), Dutch Rail has developed a number of daytrips (and some trips for 2 days) going from station to station.
In guides with maps (1:25000), all practical information is given. They are easy to use even if you do not know Dutch: there is a special section with essential topics explained in English.
All long distance footpaths (and all regional paths streekpaden) in one google maps (flash player) with share comments:
http://www.wandelnet.nl/wandelroute
public transport: http://www.ns.nl/

Switzerland: the country is very well developed for walking with about 60000 km well marked and maintained footpaths.
list of of publicly available WebGIS-applications:
http://www.geo.admin.ch/internet/geoportal/en/home/topic_thematic_portals/webGIStab.html

Austria: walking is well developed in Austria with about 44000 km of marked trails. Many, but not all, of them are partly in high mountains.
http://www.amap.at/amap/index.php?SKN=1&XPX=637&YPX=492 (only in german).

----wikipedia, some wikipedia articles are small "e-guidebooks" but many of them are a stub.

http://en.wikipedia.org/wiki/Long-distance_trail

http://en.wikipedia.org/wiki/Long-distance_trails_in_the_United_States

http://en.wikipedia.org/wiki/European_long-distance_paths

http://en.wikipedia.org/wiki/Long-distance_footpaths_in_the_United_Kingdom

http://en.wikipedia.org/wiki/Long-distance_trails_in_the_Republic_of_Ireland

http://en.wikipedia.org/wiki/Long-distance_trails_in_Australia

http://en.wikipedia.org/wiki/GR_footpath (The Grande Randonnée (French), Grote Routepaden or Lange-afstand-wandelpaden (Dutch), Grande Rota (Portuguese) or Gran Recorrido (Spanish))

http://en.wikipedia.org/wiki/New_Zealand_tramping_tracks

---USA
In 1968, the United States created its National Trails System (http://en.wikipedia.org/wiki/National_Trails_System), which includes National Scenic Trails, National Historic Trails and National Recreation Trails.
Find a trail (take around one minute for the full map; flash player):
http://www.pnts.org/the-national-trails
If you click on a trail, just an URL!

Search over 1100 National Recreation Trails in the online database and more:
http://www.americantrails.org/resources/statetrails/index.html

In the United States agencies administering trails include the National Park Service, the U.S. Forest Service, the Bureau of Land Management, State Park systems, County Parks, cities, private organizations such as land trusts, businesses and individual property owners.
New trail construction by an agency must often be assessed for its environmental impact and conformance with State or Federal laws. For example, in California new trails must undergo reviews specified by the California Environmental Quality Act.

see also the transportation maps: http://nationalatlas.gov/transportation.html
http://nationalatlas.gov/: Biological Data, geological data...
see an example, Oregon geospatial data: http://www.oregon.gov/DAS/EISPD/GEO/sdlibrary.shtml
with GEO Data RSS feed to receive updates when data is added or changed in the Spatial Data Library.

Information about the draft Federal Trail Data Standard:
http://www.fgdc.gov/standards/projects/FGDC-standards-projects/trail-data-standard/public-review-Federal-Trail-Data-Standard/?searchterm=trail
The functional scope of the draft Federal Trail Data Standard (FTDS) includes the definition of a core set of trail data attributes, corresponding values, and definitions. This draft standard reflects tabular and spatial trail data applicable. The draft Federal Trail Data Standard does not cover all possible trail data or agency-specific data needs, but concentrates on a core set of inter-jurisdictional management and administrative trail data needs. The FTDS are not a database (this effort does not create any new databases.  For the first time, four federal land management agencies (BLM, FWS, NPS and USFS) have collaborated to standardize their definitions of commonly used trail terminology). Data collection and implementation schedules will be determined by each agency.  The FTDS simply provide common definitions and terminology for a core set of trail information. The FTDS do not include standardized data definitions for facilities or “things along the trail”. This level of detail is beyond the scope of the FTDS and more appropriate for individual agencies or entities to define, depending on their specific data needs. 

• BLM (http://en.wikipedia.org/wiki/Bureau_of_Land_Management):  BLM is adapting these standards into FAMS.   
• FWS (http://en.wikipedia.org/wiki/FWS):  FWS has incorporated these standards into SAMMS and into the trail inventory of all National Wildlife Refuges and National Fish Hatcheries. 
• NPS (http://en.wikipedia.org/wiki/National_Park_Service):  NPS is adapting these standards into FMSS.
• USFS (http://en.wikipedia.org/wiki/USFS):  USFS has incorporated the majority of these standards into Infra Trails. The remaining standards have been through internal review and are planned for incorporation  into Infra Trails and/or Infra Heritage (for certain NHT data fields).  

The federal trail data standard (sept 2010; trails of all kinds):
http://www.fgdc.gov/standards/projects/FGDC-standards-projects/trail-data-standard/Federal_Trail_Data_Standards_20100909HS.pdf
Projection: NAD83 is the national standard.


Definition of Trail:  A linear route managed for human-powered, stock, or off-highway vehicle forms of transportation or for historic or heritage values.

Trail Code Trail Category:

1. Reg. Trail : Regular Trail: any agency-managed trail not designated NST or NHT
2. NST: National Scenic Trail (Congressionally Designated)
3. NHT1 (Desig): Route(s) congressionally designated as the National Historic Trail
4. NHT2 (HR): NHT associated heritage resources (routes and/or sites)
5. NHT3 (Rec): NHT associated recreation or interpretive route and/or site

The metadata must be in a FGDC-compliant format (for both spatial and non-spatial data) as 
documented at http://www.fgdc.gov/metadata/geospatial-metadata-standards


The creation of the National Spatial Data Infrastructure (NSDI) was authorized by President Clinton under Executive Order 12906 in 1994, and has provided the policy umbrella for geographic information in the US : http://www.fgdc.gov/nsdi/nsdi.html

In the mid 1990s the U.S. Federal Geographic Data Committee published its Content Standards for
Digital Geospatial Metadata, a format for the description of geographic data sets. The project was very timely, given the rapid increase in the availability of geographic information via the Internet that occurred at that time. Metadata were seen as the key to effective processes of search, evaluation, and use of geographic information. Nevertheless, and despite numerous efforts and inducements, it remains very difficult to persuade those responsible for creating geographic data sets to provide adequate documentation. (GeoJournal (2007) 69:211–221)

The Bureau of Land Management (BLM; http://www.blm.gov/wo/st/en.html) is an agency within the United States Department of the Interior which administers America's public lands, totaling approximately 1,023,855 km2 (one-eighth of the landmass of the country). The BLM also manages 2,832,800 km2 of subsurface mineral estate underlying federal, state and private lands. Its budget is US$960,000,000 for 2010 ($9.38 per hectare). The BLM also manages 7200 km of National Scenic, Historic, and Recreational Trails, as well as thousands of km of multiple use trails used by hikers, equestrians, motorcyclists and mountain bikers.
Database of 718 recreation areas:
http://www.recreation.gov/recFacilitySearch.do?agencies=126
Example: http://www.blm.gov/ca/st/en/prog/recreation.html
or http://www.recreation.gov/recAreaDetails.do?contractCode=NRSO&recAreaId=1268&agencyCode=126
there is no standardization of HTML pages for each trails!
http://www.blm.gov/ca/st/en/fo/ukiah/cachecreek.html
http://www.blm.gov/ca/st/en/fo/ukiah/maps_ukiah.html
All maps are available online in printable pdf format.

United States Fish and Wildlife Service (FWS; http://www.fws.gov):


-National Wildlife Refuge System (548 National Wildlife Refuges and 66 National Fish Hatcheries)
-Division of Migratory Bird Management
-Federal Duck Stamp
-National Fish Hatchery System
-Endangered Species program
-United States Fish and Wildlife Service Office of Law Enforcement

Budget: $2.32 billion (http://www.fws.gov/budget/)

National Park Service (NPS,  http://www.nps.gov)
The NPS is the US federal agency that manages all national parks, many national monuments, and other conservation and historical properties.
The NP system encompasses approximately 338 000 km².
NP trails around 20 000km.
Budget: $3 billion.
Find a park: http://www.nps.gov/findapark/index.htm

United States Forest Service (USFS, http://www.fs.fed.us)
The United States Forest Service is an agency that administers the nation's 155 national forests and 20 national grasslands, which encompass 780000 km², 230693 km of trails.
Budget: $5.8 billion (42% is spent fighting fires).
maps: http://www.fs.fed.us/maps/
US: http://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5274609.html
each park=POI with a balloon (with one link).

On April 16, 2010, Pd Obama introduced America’s Great Outdoors http://americasgreatoutdoors.gov/, an initiative aimed at reigniting our historic commitment to conserving and enjoying the magnificent natural heritage that has shaped our nation and its citizens.

http://americasgreatoutdoors.gov/files/2011/02/AGO-Report-With-All-Appendices-3-1-11.pdf

----China
In 1999, the inaugural International Symposium on Digital Earth in Beijing provided a venue for the extensive international support for implementing the Gore Digital Earth vision (1998).

An explosion of Chinese "Digital Earth" projects followed: hundreds of digital earth cities created by national, provincial, and municipal governments as well as universities.
In China, "Digital Earth" and GIS became a metaphor for modernization and automation with computers, leading to its incorporation into a five-year modernization plan.
Originating from China’s satellite remote sensing community, Digital Earth prowess spread to a range of applications(flood predictions, dust cloud modeling, and city planning). China has been omnipresent at all international Digital Earth conferences since and has recently founded the International Society for Digital Earth. In 2009, the International Symposium on Digital Earth returned to Beijing for its 6th meeting.
one example: http://dx.doi.org/10.1117/12.838577
Zhan-chun Xiao, Yan-fang Liu, Jing Liu, Ya Tang and Chen Zeng, "Research on visualization of main tourist areas in Hubei province based on Google Earth", Proc. SPIE 7492, 74920S (2009)
Proceedings / Volume 7492 / Multi-sensor, Multi-resolution, and Multi-mode Data Fusion

The travel craze in China has become one of the largest sources of expenditure increases. However, the limited patterns of information demonstration hindered the availability of necessary information to the public as well as the decision makers. Google Earth provides a useful platform for integrating environmental information with geospatial data from different sources. Using KML files, various environmental data may be viewed in Google Earth. In this paper, Google Earth is used as basic GIS platform. Placemarks of main tourist areas of Hubei Province are made and loaded by KML. The most up-to-date information is released using text, picture and video in HTML files. This approach transformed the traditional two-dimension travel information system into multi-dimensional information platform, facilitating data updating and information sharing over the Internet. It would also help decision making of the government and promote information availability to the public.

---Taiwan
one example: http://dx.doi.org/10.1117/12.872675
Yea-Chung Ding, "Using Digital Earth to create online scientific reality tourist guides to tourist attractions in Taiwan", Proc. SPIE 7840, 78400Q (2009).
Proceedings / Volume 7840 / Web-based Services, System Design, and Algorithms for Digital Earth

In recent years national parks worldwide have introduced online virtual tourism, through which potential visitors can search for tourist information. Most virtual tourism websites are a simulation of an existing location, usually composed of panoramic images, a sequence of hyperlinked still or video images, and/or virtual models of the actual location. As opposed to actual tourism, a virtual tour is typically accessed on a personal computer or an interactive kiosk. Using modern Digital Earth techniques such as high resolution satellite images, precise GPS coordinates and powerful 3D WebGIS, however, it's possible to create more realistic scenic models to present natural terrain and man-made constructions in greater detail. This article explains how to create an online scientific reality tourist guide for the Jinguashi Gold Ecological Park at Jinguashi in northern Taiwan, China. This project uses high-resolution Formosat 2 satellite images and digital aerial images in conjunction with DTM to create a highly realistic simulation of terrain, with the addition of 3DMAX to add man-made constructions and vegetation. Using this 3D Geodatabase model in conjunction with INET 3D WebGIS software, we have found Digital Earth concept can greatly improve and expand the presentation of traditional online virtual tours on the websites.

-------they are a lot of personal pages relating a trek
for example, see :
the index of personal pages relating a trek along GR20 (Corsica):
http://www.mylinea.com/cguelfucci/randonnee_en_corse/carnets_de_voyage/
and this on-line travel guide to Corsica: http://corsica.forhikers.com/gr20
--many web services with connect.garmin.com
dynamic views (charts) of records distance, timing, elevation, pace, heart rate, power data (from ANT+™-enabled third-party power meters) and more. 
With http://connect.garmin.com/explore, you can find tracks/routes (results: only 10 by 10; bing maps, no right click, if you click on a track, you can see directly on the map). You can save the link (example). 
If you select "view details": you get access to many data. You have many save functions: embed (only iframe), kml; you can send data to your device. With "splits" view,  you can export to csv. Select "player" view, and get a dynamic tour (simulate your activity along your route with workout data.).
Manual activity
The management (dashboard) is quite good. You have to create an account (no openID).
YOU CANNOT CREATE A TRACK MANUALLY (you need a GPS product).


3 APIs: http://developer.garmin.com/web-products/
http://developer.garmin.com/web-products/web-services/ (not available DATA@august 2011)
Enable users to interact programmatically from your application or web site to Garmin Connect. The API returns Garmin Connect data in a form that can be easily integrated into an application or a web site.
http://developer.garmin.com/web-products/user-interface-library/

Gain access to a set of utilities and controls, written in Flash and JavaScript, for adding Garmin Connect components to web applications.
http://developer.garmin.com/web-device/garmin-communicator-plugin/
Communicate with Garmin GPS products directly from a web application. Allow visitors, who have the free cross-platform/browser Garmin Communicator plugin installed on their computer to transfer waypoint, route, track log, fitness and map data between their Garmin device and your website.



just one example:
http://connect.garmin.com/activity/99720935
http://connect.garmin.com/player/99720935


-----they are a lot of guide pdf file 
example Texas: http://www.onlinedigitalpubs.com/publication/?i=54695
--there are many sites of hiking society:
example http://www.americanhiking.org/Resources/Links/

---examples of local "aggregator" of single-day bushwalks:
http://www.walkgps.com/site%20map.htm provides descriptions, maps, waypoints and routes for several single-day bushwalks (for more than 55 one-day walks) within a distance of less than 100km from the city of Perth in Western Australia. Route maps, waypoints, links to satellite imagery, video, and over 700 photos are included within 120-plus web pages.
WalkGPS includes Google road maps, Google Earth displays and GPS waypoints and 'track' files (including PCX5, GPX, KMZ and MAP files for all walks), so that you can easily find your way to walk start points and discover the walk routes.
all ways to access to the 55 one-day walks:
http://www.walkgps.com/bushwalks.htm
A convenient compilation of downloadable map, waypoint and 'track' files for all walks on WalkGPS:
http://www.walkgps.com/Maps,%20Waypoints%20and%20Track%20Files.htm

---examples of local "aggregator" of local waypoints (Southern Africa):
http://www.gpswaypoints.co.za/

---some well-known guides, example: the green guide and viaMichelin
try this tourism magazine (the green guide):  http://travel.viamichelin.com/web/Search-Tourist-Attraction/France-Auvergne_Rhone_Valley-Saint_Etienne
The www.viamichelin.com website (alexa rank: 9600 (DATA@august 2011)) clearly shows the Michelin experience in the publication of maps and guides.
ViaMichelin provides many one-click services. It offers maps, route plans, hotel and restaurant booking services and traffic and tourist information..., across a range of media including the Internet, mobile phones, Personal Digital Assistants, GPS navigation systems... Its on-line hotel/motel reservations service features (more than 60000 hotels across Europe).
The exclusive database of Michelin Guide content and listings includes 18 000 tourist site recommendations and ratings for 62 000 hotels and restaurants, as well as additional travel services including traffic and weather updates, on-line car-hire booking. This database is updated regularly.
many GPS export: 1)totom: save to .ov2, 2)viaMichelin GPS (by direct connection), 3)garmin, .gpx, 4)navigon .freshcontact, 5)mio .csv, 6)navman .csv, 7)BMW connected drive login, 8)pioneer .kml.
You easily can calculate your route (with many Driving directions) and save to GPS.
try the audioGuide (in french): http://www.zevisit.com/viamichelin/audioguide/1/FRA/destination.html
try the gastronomy magazine with many Cooking type/price options: http://www.viamichelin.com/web/Restaurants
try the maps with many categorized POI (maybe the best!):
http://www.viamichelin.com/web/Maps



---------my best choice:

KML and Fusion Table
Fusion Tables supports visualizing your data on maps (it is a better alternative to Spreadsheet Mapper:
http://earth.google.com/outreach/tutorial_fusion_yourowndata.html#comparemappers).

see the example : Biking and Hiking trails from MTBGuru.com 
http://www.mtbguru.com/ alexa rank: 1450000 (DATA@august 2011).

http://blog.mtbguru.com/2010/02/24/mtbguru-tracks-as-seen-through-google-fusion-tables/
It's a cloud-based collaborative database application. To illustrate these fusionTable features, data from MTBGuru (public trips) have been used to demo these visualizations. Some maps show tracks from public trips in the map area, which are all overlayed as polylines. Moreover the polylines are clickable and will show you an infoWindow with links to the original trip page. The data, which lives in a Fusion Table, can be filtered and manipulated as one can expect in a database environment, and the visualization will be adjusted accordingly. See the data: http://www.google.com/fusiontables/DataSource?dsrcid=132848
They have created a Google Code project with sample code illustrating how we used the API to work with Fusion Tables and create the table with trips: http://code.google.com/p/mtbguru-fusiontables/, see updated project: https://github.com/tokumine/fusion_tables (this gem lets you easily interact with Google Fusion Tables API from your Ruby application via a plain SQL interface, or an object orientated interface). See also this example (position of bikes, London: http://www.google.com/fusiontables/DataSource?snapid=78314)

Fusion Tables supports a number of data formats:
Comma-separated files (.csv) - Up to 100 MB
Microsoft Excel files (.xls, .xlsx) - Up to 1 MB
OpenDocument Spreadsheet (.ods) - Up to 1 MB
Keyhole Markup Language (.kml) - Up to 100 MB
Data already in a Google Spreadsheet
If you have datasets in Excel or Open Office Spreadsheets that are larger than 1MB, save them as CSV files to take advantage of the larger 100MB limit!

-------see a good example (trail and many menus on the map):
 http://www.mappingsupport.com/p/gmap4.html
http://www.mappingsupport.com/p/gmap4.php?q=http://www.mappingsupport.com/p/gmap4/helpfile/Howson_Creek_trail.kml&ll=47.353075,-121.076332&t=t2&z=13&label=off&coord=latlng

Gmap4 map displaying information from a delimited text file.This new file format is much easier to understand than GPX or KML files.

--------at the end of this post, the last but not the least:
the dotted lines (one dotted lines or parallel dotted lines, in black; see the images below) of the IGN map or "carte France raster" correspond to paths, footpaths, mule track, hiking trail, nature trail, beaten track....Many of them have no trailblazing. Some of these "dot lines" correspond to old paths and you must need a sickle ;)
The parallel //dotted lines corresponds to "roads" for farm tractor or 4X4 (without asphalt): non-motorized trails. There is no difference (same dotted lines) for the two types of trails - paved (bicycle) and unpaved hiking trails.


select IGN map with scale 1:64000, you can see many tourism POI http://www.ign.fr/institut/documentArticle.do?idDoc=6152265&indexRoot=4&indexChild=2&currentRootSearch=&indexChildSearch=
Select some maps with national/regional  parks and biodiversity data: http://www.geoportail.fr/5061756/actu/6026212/carte-sur-la-biodiversite.htm
Select the "land parcels" layer, you will see "barbed wires";)
Select "transport networks" and "roads", you get a better view of roads.
Select "land cover" and "Carte forestière v1 (1987-2004)" or "Carte forestière v2", 
http://www.geoportail.fr/en_UK/actu.do?channelid=5061756&idDoc=6509162 (only in french).


example: 
"IGN map":

"carte France raster":

--google earth:
you can see the trails (in white with different width) : just click on "roads" (layers menu). You have to select a scale lower than eye alt 2km. There are no differences between trails and roads with asphalt!
National roads or some other roads (many mistakes) appear with a yellow color.


no dotted lines for manually add a path (choice are limited : color, width, opacity); version 6.0.3.2197 (build date: 5/17/2011)




---dotted lines 
you can use dotted lines with http://www.bing.com/maps/
1)you need a live account
2)create your places
3) see the editor:

4)you can export
kml

GPX

GeoRSS

Userscripts.org (->browser) different of jsdo.it : power-ups for your browser ; user.js->extension

Userscripts.org: Power-ups for your browser:

http://userscripts.org/

compare userscript.org and jsdo.it

http://userscripts.org/about/installing
Chrome has an "auto-Greasemonkey". Greasemonkey is an extension for Mozilla Firefox, an open source Web Browser. Most userscripts are written for Firefox & Greasemonkey (although some work in Opera, Safari,Chrome and even Internet Explorer).

-----------------------

web services: URL shorteners and Clean URL; URL design.

A shortener:
Paste your long URL and you get a new short URL.

URL shortening is a technique in which a Uniform Resource Locator (URL) may be made shorter in length and still direct to the required page. This is achieved by using an HTTP Redirect on a domain name that is short, which links to the web page that has a long URL.

http://goo.gl/
(this allows other services linked with your google account (your feed; analytics...))

http://en.wikipedia.org/wiki/URL_shortening

It's different of http://en.wikipedia.org/wiki/Clean_URL

http://warpspire.com/posts/url-design/

jsdo.it - Share JavaScript, HTML5 and CSS

http://jsdo.it/

ex-ample: http://jsdo.it/ex-ample.blogspot/oTq7

jsdo.it launched in June 2010 and in less than a year it has surpassed 10,000 registered users, more than 18,000 codes submitted.

Signing up is super fast, you only need to decide your name:
Account: google, facebook, twitter, yahoo openId.

3 choices:

• use JavaScript editor(default)
• use JavaScript New editor (beta)
• use HTML textarea editor

jsdo.it shares JavaScript, HTML5 and CSS.

Our site is engagement-driven. We offer both, vivid environment for developers to showcase their trendy works on JavaScript and HTML5, as well as community to share their codes and learn from each other. That's why we call our communtiy 'a coding avenue'.

Browser-based editor:

jsdo.it is a handy place to keep your codes, just like GitHub. The difference is, our platform is more oriented to visual works, leveraging the power of JavaScript, HTML5 and modern browser technologies.

ALL Official Chrome extensions for Google products

http://www.google.com/support/chrome/bin/static.py?page=guide.cs&guide=27542

Official extensions for Google products:
Extensions are a great way to add more features and functionality to the browser. Try out the following extensions available for Google products.

24 chrome extensions (data@july 2011):

• Blog This!:
  one-click service for posting.
• Docs PDF/PowerPoint Viewer:
  This extension automatically opens PDF, PowerPoint, and TIFF file links that you click in Google Docs Viewer. No need to download the files to your computer -- you see the document or presentation immediately in the browser.
• Email this Page
  This extension adds a button to the toolbar that you can click to email the link of the page you're on, using either your default email service or Gmail. The new email message opens in a new tab and is pre-populated with a link to the page, as well as any text you've highlighted on that page. Right-click the button and select Options to choose which email service should be used.
•  Favorite Doodle
•  Google Calendar Checker
•  Google Checkout Promo Notifier
•  Google Dictionary
  See instant definitions. This extension lets you double-click a word on a page to view its definition in a small pop-up bubble. The extension also adds a small icon to the address bar that you can click to search for a definition. You can set the dictionary language via the options menu for the extension.
•  Google Mail Checker
•  Google Quick Scroll:
  This extension helps you find info on a page that's most relevant to your Google search. When you click a search result after searching on Google, a dialog may pop up on the bottom-right corner of the page, showing one or more bits of text from the page that are most relevant to your search. Clicking the text will take you directly to that part of the page. 
•  Google Reader Notifier
•  Google Share Button:
  The same Google Share Button found in Google Toolbar for Internet Explorer and Firefox is now available as an extension for Google Chrome. Click the Share button and select your desired service from the drop-down menu. Frequently used services will appear at the top of the menu, and you can find more services by clicking "View more services" at the bottom of the Options menu. "addthis" is a better service.
•  Google Sidewiki
  http://ex-ample.blogspot.com/2011/07/all-about-web-annotation-service-google.html
•  Google Similar Pages beta
  Explore webpages similar to the one you're browsing. This extension adds a button the toolbar that you can click to find webpages that are similar to the page you're browsing. When you click the button, your browser searches Google for you to see if there are any webpages similar to the page you're browsing.
•  Google Translate.
  instantly translate entire webpages. This extension shows a banner at the top of the page whenever it detects that the language of a page you're on is different from the language you're using for your Google Chrome interface. Click the Translate button in the banner to automatically translate the page. You can also click the extension's button  to translate the page.
  http://www.google.com/support/translate/
•  Google Voice
  This extension adds a button to the toolbar that shows the number of unread messages in your Google Voice inbox. You can click the button to instantly see transcripts of your messages. You can also place a call or send a free text message via Google Voice from the button pop-up.
•  Knol Buddy
  This extension considers the page you are viewing and finds the most relevant knol for it. Click the button on the toolbar to visit the knol.
•  News Reader
•  orkut
•  RSS Subscription
•  Secbrowsing Plug-in Version Checker
  This extension alerts you through an address bar icon if you have a browser plug-in that's outdated. 
•  Select to Get Maps
  Instantly convert addresses into map links.This extension converts addresses you select on a web page into a map link. A pop-up appears with useful links for directions or to see the address on a map.
•  Send from Gmail
  This extension sets Gmail to open by default whenever you click an email address on a webpage. It also adds a button to the toolbar that you can click to email the link of the page you're on, as well as any text you've selected, using Gmail. To use an Google Apps email account with this extension, right-click the button and select Options. Enter your Google Apps domain and click Save.
•  Slideshow
  Turn your favorite photo sites into a slideshow.This extension adds a slideshow icon in the address bar whenever you visit Picasa, Flickr, Facebook, or Google Images. Click the icon to transform the page you're on into a slideshow. To go back to the standard view, click the x button at the top of the page.
•  Speed Tracer
  Get insights about your web application performance. This extension is geared for web developers who want to see performance statistics for their web applications. Click the button added to the toolbar to get a better picture of where time is being spent in your application. The extension visualizes metrics that are taken from low level instrumentation points inside of the browser and analyzes them as your application runs. You can analyze problems caused by:
• Javascript parsing and execution
• Layout
• CSS style recalculation and selector matching
• DOM Event handling
• Network resource loading
• Timer fires
• XMLHttpRequest callbacks
• Painting
• To use this extension, make sure you're using the developer version of Google Chrome and running the browser with the following command line flag: --enable-extension-timeline-api

all services of AddThis sharing button menu;one-click service;blogger, google plusone buzz,translate, gmail; bookmarking simple;

343 services (data@july 2011).
 http://www.addthis.com makes sharing simple.
see also: http://ex-ample.blogspot.com/2011/07/all-about-bookmarking-chromes-bookmarks.html

All Services with the addThis extension for your browser:

(red: i tested this service; see some comments)


1) 100zakladok "100zakladok"
2) 2tag "2 Tag"
3) 2linkme "2linkme"
4) 7live7 "7Live7.com"
5) a1webmarks "A1-Webmarks"
6) a97abi "A97abi"
7) addio "Add.io"
8) adfty "Adfty"
9) adifni "Adifni"
10) aerosocial "aero"
11) allmyfaves "All My Faves"
12) amazonwishlist "Amazon"
13) amenme "Amen Me!"
14) aim "Aol Lifestream"
15) aolmail "AOL Mail"
16) armenix "Armenix"
17) arto "Arto"
18) aviary "Aviary Capture"
19) baang "Baang"
20) baidu "Baidu"
21) bebo "Bebo"
22) bentio "Bentio"
23) biggerpockets "BiggerPockets"
24) bitly "Bit.ly"
25) bizsugar "bizSugar"
26) bleetbox "Bleetbox"
27) blinklist "Blinklist"
28) blip "Blip"
29) blogger "Blogger" (same of blog this)
30) bloggy "Bloggy"
31) blogmarks "Blogmarks"
32) blogtrottr "Blogtrottr"
33) blurpalicious "Blurpalicious"
34) boardlite "Boardlite"
35) bobrdobr "Bobrdobr"
36) bonzobox "BonzoBox"
37) socialbookmarkingnet "BookmarkingNet"
38) bookmarkycz "Bookmarky.cz"
39) bookmerkende "Bookmerken"
40) bordom "Bordom"
41) box "Box.net" (add link in you box.net)
42) brainify "Brainify"
43) bryderi "Bryderi"
44) buddymarks "BuddyMarks"
45) buzzzy "Buzzzy"
46) camyoo "Camyoo"
47) cardthis "CardThis"
48) care2 "Care2"
49) chiq "Chiq"
50) cirip "Cirip"
51) citeulike "CiteULike"
52) classicalplace "ClassicalPlace"
53) clickazoo "Clickazoo"
54) cndig "Cndig"
55) colivia "Colivia.de"
56) technerd "Communicate"
57) connotea "Connotea"
58) cootopia "cOOtopia"
59) cosmiq "COSMiQ"
60) curateus "Curate.Us"
61) delicious "Delicious"
62) designbump "DesignBump"
63) designmoo "Designmoo"
64) digthiswebhost "Dig This Webhost"
65) digaculturanet "DigaCultura"
66) digg "Digg"
67) diggita "Diggita"
68) diglog "diglog"
69) digo "Digo"
70) digzign "Digzign"
71) diigo "Diigo"
72) dipdive "Dipdive"
73) domelhor "doMelhor"
74) dosti "Dosti"
75) dotnetkicks "DotNetKicks"
76) dotnetshoutout "DotNetShoutout"
77) woscc "DotShare"
78) douban "Douban"
79) draugiem "Draugiem.lv"
80) drimio "Drimio"
81) dropjack "Dropjack"
82) dwellicious "Dwellicious"
83) dzone "dzone"
84) edelight "edelight"
85) efactor "EFactor"
86) ekudos "eKudos"
87) elefantapl "elefanta.pl"
88) email "Email"
89) embarkons "Embarkons"
90) eucliquei "euCliquei"
91) evernote "Evernote"
92) extraplay "extraplay"
93) ezyspot "EzySpot"
94) fabulously40 "Fabulously40"
95) facebook "Facebook"
96) informazione "Fai Informazione"
97) fark "Fark"
98) farkinda "Farkinda"
99) fashiolista "Fashiolista"
100) fashionburner "Fashion BURNER"
101) favable "FAVable"
102) faves "Faves"
103) favlogde "favlog"
104) favoritende "Favoriten.de"
105) favoritus "Favoritus"
106) flaker "Flaker"
107) flosspro "Floss.pro"
108) folkd "Folkd"
109) followtags "FollowTags"
110) forceindya "forceindya"
111) formspring "Formspring"
112) thefreedictionary "FreeDictionary"
113) fresqui "Fresqui"
114) friendfeed "FriendFeed"
115) friendster "Friendster"
116) funp "funP"
117) fwisp "fwisp"
118) gabbr "Gabbr"
119) gacetilla "Gacetilla"
120) gamekicker "Gamekicker"
121) givealink "GiveALink"
122) globalgrind "GlobalGrind"
123) gmail "Gmail" (send the URL of page to you Gmail)
124) goodnoows "Good Noows"
125) google "Google"  (add the page in your google bookmarks)
126) google_plusone "Google +1" (if the URL has not plusone button; you can use this service )
127) googlebuzz "Google Buzz" (if the URL has not buzz button; you can use this service )
128) googlereader "Google Reader"
129) googletranslate "Google Translate" (you can translate the page)
130) gravee "Gravee"
131) greaterdebater "GreaterDebater"
132) grono "Grono.net"
133) grumper "Grumper"
134) habergentr "Haber.gen.tr"
135) hackernews "Hacker News"
136) hadashhot "Hadash Hot"
137) hatena "Hatena"
138) gluvsnap "Healthimize"
139) hedgehogs "Hedgehogs.net"
140) hellotxt "HelloTxt"
141) hipstr "hipstr"
142) historious "Historious"
143) hitmarks "Hitmarks"
144) hotbookmark "Hot Bookmark"
145) hotklix "Hotklix"
146) hotmail "Hotmail"
147) w3validator "HTML Validator"
148) hyves "Hyves"
149) idearef "ideaREF!"
150) identica "Identica"
151) igoogle "iGoogle"
152) ihavegot "ihavegot"
153) index4 "Index4"
154) indexor "Indexor"
155) instapaper "Instapaper"
156) investorlinks "InvestorLinks"
157) iorbix "iOrbix"
158) isociety "iSociety"
159) iwiw "iWiW"
160) jamespot "Jamespot"
161) jappy "Jappy Ticker"
162) joliprint "JoliPrint"
163) jumptags "Jumptags"
164) zooloo "KaBlog"
165) kaboodle "Kaboodle"
166) kaevur "Kaevur"
167) kaixin "Kaixin Repaste"
168) kipup "Kipup"
169) kirtsy "KiRTSY"
170) kledy "Kledy"
171) kommenting "Kommenting"
172) latafaneracat "La tafanera"
173) laaikit "Laaikit"
174) ladenzeile "Ladenzeile"
175) librerio "Librerio"
176) linkninja "Link Ninja"
177) linkagogo "Link-a-Gogo"
178) linkedin "LinkedIn"
179) linksgutter "Links Gutter"
180) linkshares "LinkShares"
181) linkuj "Linkuj.cz"
182) livefavoris "Livefavoris"
183) livejournal "LiveJournal"
184) lockerblogger "LockerBlogger"
185) logger24 "Logger24.com"
186) lynki "Lynki"
187) mymailru "Mail.ru"
188) markme "Markme"
189) mashbord "Mashbord"
190) mawindo "Mawindo"
191) meccho "Meccho"
192) meinvz "meinVZ"
193) mekusharim "Mekusharim"
194) memonic "Memonic"
195) memori "Memori.ru"
196) meneame "Menéame"
197) live "Messenger"
198) mindbodygreen "Mindbodygreen"
199) misterwong "Mister Wong"
200) misterwong_de "Mister Wong DE"
201) mixx "Mixx"
202) moemesto "Moemesto.ru"
203) moikrug "Moikrug"
204) mototagz "mototagz"
205) mrcnetworkit "mRcNEtwORK"
206) multiply "Multiply"
207) myaol "myAOL"
208) myhayastan "MyHayastan"
209) mylinkvault "mylinkvault"
210) myspace "Myspace"
211) n4g "N4G"
212) naszaklasa "Nasza-klasa"
213) netlog "NetLog"
214) netvibes "Netvibes"
215) netvouz "Netvouz"
216) newsmeback "NewsMeBack"
217) newstrust "NewsTrust"
218) newsvine "Newsvine"
219) nujij "Nujij"
220) odnoklassniki_ru "Odnoklassniki"
221) oknotizie "OKNOtizie"
222) oneview "oneview"
223) ongobee "OnGoBee"
224) orkut "orkut"
225) dashboard "OS X Dashboard" (Problem?)
226) osmosus "Osmosus"
227) oyyla "Oyyla"
228) packg "Packg"
229) pafnetde "pafnet.de"
230) pdfonline "PDF Online"
231) pdfmyurl "PDFmyURL"
232) phonefavs "PhoneFavs"
233) pimpthisblog "PimpThisBlog"
234) pingfm "Ping.fm"
235) planypus "Planypus"
236) plaxo "Plaxo"
237) plurk "Plurk"
238) pochvalcz "Pochval.cz"
239) popedition "PopEdition"
240) posteezy "Posteezy"
241) posterous "Posterous"
242) pratiba "Prati.ba"
243) printfriendly "PrintFriendly"
244) pusha "Pusha"
245) qrfin "QRF.in"
246) quantcast "Quantcast" (load the quantcast page with the URL of the page)
247) qzone "Qzone"
248) readitlater "Read It Later"
249) reddit "Reddit"
250) rediff "Rediff MyPage"
251) redkum "RedKum"
252) ridefix "RideFix"
253) scoopat "Scoop.at"
254) segnalo "Segnalo"
255) sekoman "Sekoman"
256) select2gether "Select2Gether"
257) shaveh "Shaveh"
258) shetoldme "SheToldMe"
259) shirintar "ShirIntarIn"
260) simpy "Simpy"
261) sinaweibo "Sina Weibo"
262) slashdot "Slashdot"
263) smiru "SMI"
264) sodahead "SodaHead"
265) sonico "Sonico"
266) speedtile "Speedtile"
267) sphinn "Sphinn"
268) spinsnap "SpinSnap"
269) spokentoyou "Spoken To You"
270) sportpost "sportpost"
271) yiid "Spread.ly"
272) springpad "springpad"
273) spruzer "Spruzer"
274) squidoo "Squidoo"
275) startaid "Startaid"
276) startlap "Startlap"
277) storyfollower "Story Follower"
278) studivz "studiVZ"
279) stuffpit "Stuffpit"
280) stumbleupon "StumbleUpon"
281) stumpedia "Stumpedia"
282) stylehive "Stylehive"
283) svejo "Svejo"
284) symbaloo "Symbaloo"
285) taaza "Taaza"
286) tagmarksde "TagMarks.de"
287) tagvn "Tagvn"
288) tagza "Tagza"
289) tarpipe "tarpipe"
290) tellmypolitician "TellMyPolitician"
291) thewebblend "The Web Blend"
292) thinkfinity "Thinkfinity"
293) thisnext "ThisNext"
294) throwpile "Throwpile"
295) tipd "Tipd"
296) topsitelernet "TopSiteler"
297) transferr "Transferr"
298) tuenti "Tuenti"
299) tulinq "Tulinq"
300) tumblr "Tumblr"
301) tusul "Tusul"
302) tvinx "Tvinx"
303) tweetmeme "TweetMeme"
304) twitter "Twitter" (tweet the URL of the page)
305) twitthis "TwitThis"
306) typepad "Typepad"
307) upnews "Upnews.it"
308) urlaubswerkde "Urlaubswerk"
309) viadeo "Viadeo"
310) virb "Virb"
311) visitezmonsite "Visitez Mon Site"
312) vk "Vkontakte"
313) vkrugudruzei "vKruguDruzei"
314) voxopolis "VOXopolis"
315) vybralisme "vybrali SME"
316) vyoom "Vyoom"
317) webnews "Webnews"
318) domaintoolswhois "Whois Lookup"
319) windows "Windows Gadgets"
320) windycitizen "Windy Citizen"
321) wirefan "WireFan"
322) wordpress "Wordpress"
323) worio "Worio"
324) wykop "Wykop"
325) xanga "Xanga"
326) xing "XING"
327) yahoobkm "Y! Bookmarks" (add URL of the page to your Y! Bookmarks)
328) yahoomail "Y! Mail"
329) yammer "Yammer"
330) yardbarker "Yardbarker"
331) yemle "Yemle"
332) yigg "Yigg"
333) yoolink "Yoolink"
334) yorumcuyum "Yorumcuyum"
335) youblr "Youblr."
336) youbookmarks "Youbookmarks"
337) youmob "YouMob"
338) yuuby "Yuuby"
339) zakladoknet "Zakladok.net"
340) zanatic "Zanatic"
341) ziczac "ZicZac"
342) zingme "ZingMe"
343) zootool "Zootool"