Joomla

Joomla! is an award-winning Content Management System (CMS) that will help you build websites and other powerful online applications. Best of all, Joomla! is an open source solution that is freely available to everybody.

Joomla! is used all over the world to power everything from simple, personal home pages to complex corporate web applications. Joomla! can be used to easily manage every aspect of your website, from adding content and images to updating a product catalog or taking online reservations.

Visit website for more information: http://www.joomla.org