What does it do? Displays the "Follows in Common" and the "Follow Rank" for a given users profile page, and lets you discover how important they are in your (Twitter) Social Network. Requires FireFox, GreaseMonkey extension(<a href="https://addons.mozilla.org/en-US/firefox/addon/748" rel="nofollow">https://addons.mozilla.org/en-US/firefox/addon/748</a>), and use of <a href="http://www.Twitter.com" rel="nofollow">http://www.Twitter.com</a>