See Joomla!.

A popular open source content management system (CMS) that is used worldwide to create and manage Web sites. The Joomla! application framework enables myriad enhancements to be plugged in, including e-commerce, blogs, wikis, document management, image galleries and more. In 2005, Joomla! evolved from the Mambo content management system, which included not only the source code, but the development team as well. The name in Swahili and Urdu means "all together, as a whole." For more information, visit www.joomla.org. See Mambo and content management system.