Joomla! is an award-winning content management system (CMS), which enables you to build Web sites and powerful online applications. Many aspects, including its ease-of-use and extensibility, have made Joomla! the most popular Web site software available. Best of all, Joomla! is an open source solution that is freely available to everyone.
Joomla is one of the more advance CMS platforms in the market. It is designed to develop a full content sites instead of just a simple blogging platform. It's relatively easy to install but it will require developers to customise and extend to additional functions and may even to plan and setup how contents are organised. Joomla is popular with a large pool of developers using Joomla to build websites for customers.
As an advance CMS, Joomla offers all kinds of customisation features such as extension, plug-ins modules and themes.
License: GNU/GPL license.