The forums. I haven't found other forums that are as good, especially in regard to keeping things in order. A lot of forums seem to have either tons of aggressive behaviour or a lot of, uh, very simple users that spam everything with stupid one-liners and such. It's actually possible to discuss things here in a civil manner! I'm guessing that's mostly thanks to moderation because there have certainly been some users testing the limits here as well, but I suppose I can't forget the users either.