I frequent two, the Serotta forum is pretty good and the Velocipede Salon is where it really happens. Lots of strong personalities and more importantly more knowledge than any other cycling forum around. Like any other online forum you need to hang arolund awhile to get the flavor. Pay attention and you will realize that there are a lot of the real deal frame builders and some pretty high level racers. Can't pick some of them out as a result of screen names but hang around and you will begin to figure them out. I have been hanging with these guys more than 10 years before they broke off from the Serotta forum to have more freedom. And best of all no bullsh#!.