Jahia (pronounce "J-A-Y-A") is the leading provider of integrated Enterprise Content & Portal Management software in the professional open source world.

Through our unique "sustainable" business model, we deliver the most complete, standard, and easy-to-use Unified Web Platform available today. It offers out-of-the-box Enterprise Content Management, Web Content Management, Corporate Portal, Document Management, Business Process Management, Search, and Collaboration features at the lowest possible price.
Our software, currently used by thousands of users, was chosen by Fortune 500 companies as well as major public administrations and is supported by a strong network of partners around the world. More...

http://www.jahia.org