Flare by GoDaddy - Discover, give feedback and support startup ideas
Proboards - ProBoards is a host of free forums with customer service.
Wittycircle - Networking tool for entrepreneurs, makers and curious minds.
ForumFree - ForumFree allows you to create a forum or a blog in a few simple steps.
Pitchstack - Become an armchair VC and judge the pitches of the day
PlushForums - PlushForums is a modern online forum hosting platform.