Tiki Wiki CMS Groupware is a web application combining the features of a wiki, a content management system (CMS) and groupware. It is the free/libre and open source (FLOSS) web application with the most built-in features. It can be used to build all sorts of web applications: simple sites, complex portals, knowledge bases, intranets, extranets, and so on. The source code of Tiki is available under the LGPL version 2 software license. See also Why Tiki Wiki CMS Groupware. The most powerful and flexible feature is: http://tikitrackers.org/