This greasemonkey script removes text box to post updates from twitter homepage.

The userscript Clean Sidebar removes unwanted elements from the sidebar of twitter homepage.

Twitter Lists are upcoming feature which enable users to create tweep lists.

Twitter is watching you! It is tracking all your clicks. Whenever you click on any external link on Twitter (web interface) – you are not immediately redirected to that link.

Add special symbols (unicode characters) to your twitter updates with simplest tool.

Tweetpreview is a cool Greasmonkey script which previews twitter updates as you type it in the text area.

I really love greasemonkey scripts and prefer them over add-ons. The reason is quite obvious – they can be handled easily.