Vikas1971
JFusion 
Supercharge your Joomla! site. Integrate almost any software into Joomla! and allow your users single logins. Now get full control over integrating multiple softwares at the same time, with the new master/slave capabilities. JFusion is a free GPL plugi ...
AllVideos
*** New version 4 out now, fully compatible with Joomla! 1.5 - 2.5 *** AllVideos (by JoomlaWorks) is truly THE all-in-one media management solution for Joomla! and a classic must-have extension for any Joomla! based website. You can use the plugin t ...
JCE 
An award-winning, configurable WYSIWYG editor for Joomla! based on Moxiecode's TinyMCE. Includes advanced Image/Media, File and Link handling, plugin support, and an Administration interface for editor configuration.
VirtueMart
Based on Joomla MVC framework with all its advantage: - Template overwritting, - Implementation of Joomla Plugins for: payment, shipment, coupons, calculation rules, custom product fields, ... - Simple installation and integration of other joomla exte ...