Epicor
Kwickmenu_CK
Kwickmenu_CK is a sliding menu that can be used horizontally or vertically. Multiple options to choose the width of the module and images, and to drive mootools effects (duration, transition).
Kunena 
Kunena is the leading Joomla forum component. Downloaded more than 3,000,000 times in 4 years since its start, Kunena is the only forum/discussion solution for Joomla that is community driven - true open source - public self-help forums, GitHub and docume ...
K2
The powerful content extension for Joomla!, awarded "Joomla! component of 2010" at J and Beyond (the international Joomla! conference). --- WHAT IS K2? --- K2 provides an out-of-the box integrated solution featuring rich content forms for items (think ...
Joom!Fish
JoomFish is the solution for your multilingual website if control over the translations matters for you. The core extension is free of charge and allows the translation of any content within your Joomla system. With an easy extension it is also possible t ...
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 exten ...
