Shackbase
AJAX Register
AJAX Register is a replacement for Joomla's native registration component which offers better user experience through inline validation and AJAX-powered account creation. AJAX Register will validate all required fields as you type presenting error mess ...
Piwik analytics plugin
http://www.gt-r.nu/ For instructions. A system plugin which adds the Piwik (http://www.piwik.org/) tracking code to your pages. The advantage of using a system plugin instead of a module (very common but not very good if you ask me) is that a module j ...
Ignite Gallery 
Features: *Categories/ Subcategories *Slideshow *Full lightbox photo gallery with all of the options that the main gallery has *Multiple image uploader with resizing before upload, and drag and drop *Frontend uploading and gallery creation *Image t ...
Be Involved!
This module allows you to help people to Get Involved with some campaigns, either donating to Joomla! or more importantly helping to extinguish Poverty (MakePovertyHistory.org). *** Answering to user requests I've just add support for Twitter (3 differ ...
TMEdit
A convenient cross browser WYSIWYG editor for Joomla! perfectly suitable for community websites! FEATURING - Image Manager: add images on your server to your articles with ease - File Manager: create links to documents on your server - CSS Plugin: ...