A couple of the regional forums..
[QUOTE=Priamos]I was wondering, most "guys' sites" dealing with the Frankfurt scene seem to consider the discussion board called Booms Frankfurter Forum as the ultimate German language site. However, when you want to register as a new member you're automatically told that "Registration is momentarily not possible". Have these guys formed a closed club? Or, otherwise, what does it take to become a member?[/QUOTE]
... are oversubscribed.
I've been advised, for example, never to let my Rheinforum and OWLforum memberships ever lapse.
Since I am not a fan of the Hessen scene, I've never registered with Booms forum. There isn't much activity in Baden Wuerttemberg, I signed up once there but I'd not be surprised if its lapsed.