Here's mine.
http://www.bowlandcentral.com/forum/
Popular forum we've been building for two years now (Our birthday is the 19th May!).
Launched as an alternative to a larger forum run by a major ISP (not ntl!), after they killed their community with excessive moderation, we struck a chord with some peopl and have grown ever since.
Registration needed to view posts, but hotmail/yahoo addresses are accepted for those who wish to remain anonymous.
It's a mixture of fun & silliness with more serious heated discussion, going very well at the moment, averaging 300 posts a day.
It's bright yellow...if you find that a bit loud, use the colour changer (same place as on here, it's the same board software)