You can put a google gadget on your blogspot; vous pouvez mettre un gadget/widget sur vore blogger

------------STEP 1--------------
use the web service" igoogle"
http://www.google.com/ig
créer votre page igoogle
http://www.google.fr/ig/
(en français après les lignes en anglais).
------------STEP 2--------------

1. click on "add gadget" (top right)
2. after, click on "most users" (top left)
3. click on "add it now" below the gadget you want to add
4. now return to your igoogle page and you can see a new window
   with your gadget
5. click on the top right corner (triangle symbol) of these window
   and select in this little menu "about this gadget"
6. click on "embed this gadget" (right down of the page)
   and now you see the page  "Add this gadget to your webpage"
   you can select "display settings" and "gadget settings",
   click on the button "get the code"
7. Copy  the HTML below
   (a line with script tag)
   you will paste this line (at the step 3)

------------STEP 3--------------
to include this gadget on your blog
Go to the page of your "blogspot edit page"
(select in the menu "design")
Select "HTML/javascript"
and put it to a column
copy the line of code
and click on the button "save"
and click on save (design)
it's done!


------------étape 2-------------
cliquez sur "ajoutez gadgets" (en haut à gauche)
------------étape 3-------------
pour inclure votre google gadget sur votre blog


choisissez "HTML/javascript"
et mettez dans une colonne à la place désirée