Based on Summize, this tool show you the associated words of two pair of words or names in a nice spectrum layout.

Xpenser: Mobile Expense Tracking and Management

WhoShouldiFollow recommends people to follow on Twitter

Displays a banner on twitter profiles which are listed at http://twitterblacklist.com

Updates live the twitter home/replies/public timeline without browser refresh

Friends & Groups is the first Greasemonkey script in a series of upcoming filters and enhancements - specially-designed for FriendFeed noise-reduction! It enables you to efficiently filter your FriendFeed experience by creating Groups of friends. ...

Adds a character counter to the comment field, clicks the 'reply on Twitter' and has an interface for sending Tweets

One-click instant inline preview of TinyURL urls that show up on FriendFeed, usually included in Twitter messages

Tweet your favorite sites when you bookmark them on your browser using this addon. Don’t use it if you’re a heavy bookmarker, or else you’ll annoy the hell out of everyone.

This addon allows you to tweet the current url you are on on your browser.