PHP-Nuke is a web based automated news publishing and content management system (a "nuke") based on PHP and MySQL. The system is fully controlled using a web-based user interface. PHP-Nuke was originally a fork of the Thatware news portal system.

Drupal is a free software package that allows an individual, a community of users, or an enterprise to easily publish, manage and organize a wide variety of content on a website. Hundreds of thousands of people and organizations are using Drupal to power an endless variety of web sites.

Drupal is open source software distributed under the GPL ("GNU General Public License") and is maintained and developed by a community of thousands of users and developers. If you like what Drupal promises for you, please work with us to expand and refine Drupal to suit your specific needs.

Frog CMS simplifies content management by offering an elegant user interface, flexible templating per page, simple user management and permissions, as well as the tools necessary for file management. Born as phpRadiant in January 2007, Frog CMS is a PHP version of Radiant CMS, a well known Ruby on Rails application. Although the two applications still share a family resemblance, Frog is charting its own development path.

Textpattern is an elegant content management system that is free, open source software. Web designers, developers, publishers and bloggers love its flexibility and extensibility. It has a powerful, sophisticated engine that can be infinitely tuned to suit whatever type of web site you can imagine.

Mambo is a free software/open source content management system (CMS) for creating and managing websites through a simple web interface. It has attracted many users due to its ease of use. Mambo also includes more advanced features such as page caching to improve performance on busy sites, advanced templating techniques, and a fairly robust API. It can also automate many tasks such as web indexing for static pages. Mambo can provide RSS feeds, printable versions of pages, news flashes, blogs, forums, polls, calendars, website searching, language internationalization, and other possibilities.

Joomla! is a free, award winning, open source content management system written with PHP for publishing content on the world wide web and intranets using a MySQL database. Joomla! includes features such as page caching to improve performance, RSS feeds, printable versions of pages, news flashes, blogs, polls, website searching, and language internationalization.