Joomla! is one of the most powerful Open Source Content Management Systems on the planet. It is used all over the world for everything from simple websites to complex corporate applications. Joomla! is easy to install, simple to manage, and reliable.
An advanced portal with collaborative book, search engines friendly URLs, online help, roles, full content search, site watching, threaded comments, version control, blogging, news aggregator.
Mambo is a full-featured, award-winning content management system that can be used for everything from simple websites to complex corporate applications. It is used all over the world to power government portals, corporate intranets and extranets, ecommerce sites, nonprofit outreach, schools, church, and community sites. Mambo's "power in simplicity" also makes it the CMS of choice for many small businesses and personal sites.
Geeklog is a content management system (CMS) with support for comments, trackbacks, multiple syndication formats, spam protection, and all the other vital features of such a system. The core Geeklog distribution can easily be extended by the many community developed plugins and other add-ons to radically alter its functionality. Available plugins include forums, image galleries, and many more.
PHP-Nuke is a news automated system specially designed to be used in Intranets and Internet. The Administrator has total control of his web site, registered users, and a powerful assembly of tools to maintain an active and 100% interactive web site using databases. PHP-Nuke is designed to be very customizable, flexible and easy to use.
phpWCMS is a robust and simple yet powerful web based content management system running under PHP and MySQL. phpwcms is in use on thousands of websites all over the world.
Very powerful Content Management System with document manager, announcements, menu manager, photo album, block maker, FAQ, web pages maker, polls, information categorizer, calendar, link manager and form generator.
A straightforward content management system designed for rapid deployment of community-based websites. Nice-looking templates, oriented toward document-sharing, clean interface.
TYPO3 is a free Open Source content management system for enterprise purposes on the web and in intranets. It offers full flexibility and extendability while featuring an accomplished set of ready-made interfaces, functions and modules.
XOOPS is an acronym of 'eXtensible Object Oriented Portal System'. Its object orientation makes it an ideal tool for developing small or large community websites, intra company and corporate portals, weblogs and much more.
Zikula is a Web Application Toolkit, which allows you to run impressive websites and build powerful online applications. Zikula has received praise for many things, but the highlights are ease of use, quick and easy development, security and performance and flexibility.
TikiWiki is designed to be an international, clean and extensible Content Management System and Groupware that can be used to create all sorts of web applications, sites, portals, intranets and extranets. TikiWiki also works great as a web-based collaboration tool. TikiWiki has a lot of native options and sections that you can enable/disable as you need them.
PhpWiki is a web site where anyone can edit the pages through an HTML form. Linking is done automatically on the server side; all pages are stored in a database. PhpWiki has been used to edit and format paper books for publication.