www.alfresco.org Alfresco is an open source, open-standards content repository built by the most experienced content management team that includes the co-founder of Documentum.
Alfresco was designed to solve the most pervasive and difficult problems in content management. Alfresco is perfect for developing enterprise and departmental portals, compliance applications or replacing uncontrolled shared file drives. Alfresco's architecture is modular and standards-based allowing you to use only the functionality you want or add new functionality as requirements grow with standard tools. Alfresco's modularity and execution paths offer greater performance and scalability.