[ice9]

I admin a phpBB forum too -- I think vBulletin is much more feature-rich, although I like the fact that phpBB is free and open-source. I wanted a clean look, but with the vBulletin functionality. I thought that the phpBB admin panel is pretty limited, and the hack community doesn't seem as well developed as vb's.

To the best of my knowledge the Crankshaft Coalition is unique, so you could say it doesn't have any "competition" yet. It's a community for automotive forum leaders that focuses on freedom of information, group knowledge-sharing projects, and open source development of software for automotive forums.