Collecting All Google buzz Firefox addons out there- stay tuned. Check out how you can add your latest Google buzz to your email signature with WiseStamp - http://bit.ly/Google-Buzz-WiseStamp
Signatures for Gmail, Google Mail, Yahoo Mail
Shareaholic is the easiest way to share interesting links using Facebook, Twitter, Google Mail, Reader, Bookmarks, Evernote, Bitly, StumbleUpon, and more... from one simple ALL-IN-ONE add-on. This is the ultimate tool for the link sharing addict!