My Greasemonkey User Scripts:

• twitter.simple.autocomplete.user.js - Autocompletter: Twitter Autocomplete
• blipfm.enhancer.user.js
• inline.player.user.js - you can try it also as an extension
• flickr.enhancer.user.js - broken after flickr redesign try this modification by Jason Rhyley
• orkut.paulinho.replacer.user.js
• orkut.nodonut.news.user.js
• wired.printer-friendly.redirect.user.js
• technorati.tags.for.blogger.user.js - see also this and this modifications.