Joomla! is one of the most powerful Open Source Content Management Systems on the planet.

Pligg Content Management System

CMS directory

Blog Tool and Weblog Platform

Moodle is a Course Management System (CMS), also known as a Learning Management System (LMS) or a Virtual Learning Environment (VLE). It is a free web application that educators can use to create effective online learning sites. Page is well written for Moodle Development and how effective it for your Educational or informative websites.

ex aliacom solutions open source groupware etc...

Lightweight cms writtent in php that wirtes data in xml : no sql database needed

Ruby on rails built CMS

Powerfull web developpement framework ruby powered

Plone CMS is a full featured professional CMS that includes a highly customizable worflow and many ... many unusual features that rox

Emencia is a french open source specialist that develops an huge open source e-commerce framework (ECS) ant a powerfull zope based CMS : Zwook

Zwook is a french zope based CMS, VERY easy to use and very powerful with many addons

La factory de toonux propose des test de systèmes de gestion de contenu open source afin de vous aider à faire votre choix avant de vous lancer dans un oprojet web