If you are regular with Google Reader, you must have noticed it got favicons all over the feed-list a few months ago. Now, it seems that you can also use Google's technique to add favicons to your web-application. And this favicon is generated directly by Google. Just a little playing around with the URLs can give you the edge.
Here are some of the favicons generated by Google:
- Yahoo! Mail:
The favicons generated are all 16x16 in dimension. If no favicon is found on the domain Google returns a default icon. Remember the favicons are returned on a domain. So if you add "http://www." before the domain name, it won't work (i.e. it would return the default favion.)