Alfresco

Alfresco is an enterprise content management (ECM) application that provides document management, collaboration, records management, knowledge management, Web content management, and imaging. It includes a content repository, an out-of-the-box Web portal framework for managing and using standard portal content, a CIFS interface that provides file system compatibility on Microsoft Windows and Unix-like operating systems, a Web content management system capable of virtualizing Web apps and static sites via Apache Tomcat, Lucene indexing, and jBPM workflow.

Website: http://www.alfresco.com/

Nuxeo EP

Nuxeo EP (Enterprise Platform) is the server-side, Java EE-based part of the Nuxeo Enterprise Content Management platform. It provides a framework and set of components to address document management and collaboration needs, including metadata/taxonomies, versioning, lifecyle management, workflow, relations, searching, reporting, transformation, auditing, and retention. Its flexible extension system, based on OSGi, allows developers to quickly configure and extend the platform by creating new components. Its default Web user interface, based on the JSF standard, uses AJAX to create a pleasant user experience. It can also be accessed by a rich client interface through the use of Web services, for instance using the Eclipse-based Nuxeo RCP rich client platform.

Website: http://www.nuxeo.com