Userscripts.org

Manage Orkut;Quote messages;Toolbar in topics, scrapbook & testemonial;Quick reply;Signature;Bookmark communities or topics;Set a topic as chat;Make menus;Communities and topic list auto update;Keyboard shortcuts;Script auto update;Mass Moderatio...

Wider map and more, in Kingdoms of Camelot!

Bypass the individual pages for images hosted by ImageFAP. Optionally prints a script to dowload with 'wget'

RapidShare Quick DL (Dead - Does Not Work April 2010)

Removes the Cool New People, the Featured Profile, the block ads, the ad at the top of the page, and other assorted annoyances. Optionally removes certain elements on a per-profile basis. It even updates automatically!

Adds a simple button beneath your profile image to remove 'Recent Activities'

Removes ads and counter from megaupload links

Hide annoying custom styles on myspace pages

Fast downloads in rapidshare

Blacklists or whitelists bulletins from users you specify.

Disable Vibrant Media IntelliTxt automatic text links, like on AnandTech.com. Update: 2006-01-13

Google search... without the crap.

Removes ads and counter from filefactory links

Automatically redirects image pages on free image hosts to the image itself.

Adds a set of links on small images.

Removes the target attribute of hyperlinks that open a new browser window.

Removes annoying style changes that moot sometimes does to /b/.

Stops hotmail redirecting you to msn when you sign out

Removes a lot of useless elements from youtube making it cleaner.

Removes the friends ticker on the right hand side of your screen.

Auto-redirect videos from YouTube, Vimeo, Viddler, and more to Quietube. Now including "pre-direction"!

Easily switch between multiple accounts while browsing reddit.

When viewing an image on imagevenue.com, the script shows only the image so no ads or text is shown, plus avoids the automatic scaling down of large images.

Censors swear words, turning them into asterisks (*)

Fixes Annoyances on Mininova. Hides Premium Torrents, Torrents with 0 Seeds. (With An Option To View Them), Ads, And More

Censor the Net, and browse with confidence

Fixes (many) evil javascript popup links: you can bookmark them and you can preview the destination in the status bar (popup function is kept)

Removes facebook's extra annoying current-news-ticker from the right side of your screen.

Allows users to stream/download Google videos as avi files.

Fix 4chan's /b/ board so that the Futaba and Burichan stylesheets point to the correct locations. If all else fails, point the default stylesheet to Futaba.