Just added some new features using the newly added BuddyPress. This will let you create groups and forums for any topic.
Here is the link to check it out. FORUMS
Also, these have been added.
- Activity: http://fansite.biz/activity/
- Members: http://fansite.biz/members/
- Groups: http://fansite.biz/groups/
- Forums: http://fansite.biz/forums/
- Blogs: http://fansite.biz/blogs/