Are you aware of the sharing feature on the Google Toolbar? Added in December 2009, this feature allows web surfers to share content on social networking sites such as Facebook, Twitter and MySpace. Additionally, surfers can use the tool to share content on blogs and through e-mail.
After users select where they would like to share information, a pop-up enables them to post the selected content to a social networking site, blog or e-mail.
Here is an example of what the content looks like posted on a Facebook wall:
