Content Management
Apache Roller is the open source Java blog server that drives Sun Microsystem's blogs.
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Developer: Roller Weblogger Project
License: Apache Software License
Operating System: Not Available
Hippo CMS is an open source information centered content management system.
Developer: Tjeerd Brenninkmeijer
License: Apache Software License
Operating System: Unix, Windows
Daisy is a comprehensive content management application framework, consisting of a standalone repository server accessible through HTTP/XML (using the ReST style of WebServices) and/or a high-level (remote) Java API, and an extensive browsing and editing DaisyWiki application running inside Apache Cocoon.
Developer: outerthought.org
License: Apache License
Operating System: OS Independent (Written in an interpreted language)
Yazd is an open-source (Apache License) discussion forum software that you can download customize and use.
Developer: Yazd
License: Apache License
Operating System: Not Available