XWiki
http://xwiki.orgXWiki offers a generic web platform for developing collaborative applications using the wiki paradigm, allowing customization through a vast collection of extensions.
XWiki is an open source software development platform based on the wiki principles, under the LGPL license. In addition to being a full-featured wiki, it is also a second generation wiki allowing effortless development of collaborative web applications. On top of this platform a plethora of applications are developed, targeted mainly on aiding enterprise-level needs.
XWiki has a vibrant community of developers and users, consisting of individual users as well as organizations around the world that are using XWiki for their own Communities or Intranets.
Within XWiki, the development involves several levels: server-side platform programming in Java with Servlet technologies, server-side application development in Velocity, Groovy, and client-side development in JavaScript, CSS and HTML.
Primary Open Source License: GNU Library or "Lesser" General Public License version 2.1 (LGPL-2.1)
