drupal.org : Drupal is an open source content management platform powering millions of websites and applications. It’s built, used, and supported by an active and ...
Ovidentia : Ovidentia vous permet d'intégrer simplement et facilement un environnement de publication sur internet ou un portail groupware (internet, extranet, in...
TYPO3 : TYPO3 is an enterprise-class, Open Source CMS (Content Management System), used internationally to build and manage websites of all types, from small ...
GetSimple CMS : GetSimple is an XML based, stand-a-alone, fully independant and lite Content Management System.
Apostrophe is a content management system designed for maximum flexibility with a minimal learning curve.
The interface is ergonomic. All content editing is performed in context.
And it's open source, so you can contribute.