The DiscussionPlugin adds discussion forums to Trac. An arbitrary number of forums can be added, organised to forum groups. Users can create topics in forums and reply to them which together creates discussion threads. Threaded or flat view to topics and its replies is supported. Each forum has a list of moderators who can delete topics, replies, etc. Appending new forums and topics either as new replies shows up in timeline. Searching capability in topics and replies is supported too. WWW: http://trac-hacks.org/wiki/DiscussionPlugin