SCT (Sphene Community Tools) is a collection of Django applications that are designed to be easily pluggable into any Django project. It currently consists of two main applications: a Wiki and a Forum/Message Board application. It contains an example project that allows users to create a community Web site containing the Wiki and Forum applications without any further coding/configuration changes.
The forum application is extensible through [HTML_REMOVED]Category Types[HTML_REMOVED] - Two applications demonstrating this are included in SCT: the LinkList and Blog application.
The website itself (http://sct.sphene.net/) is of course based on django and SCT.