The only other forum I visit on a regular basis is a professional photography forum. Costs $139 a year for membership. So all in all, the atmosphere is pretty different from most forums you'd find on the internet. I lurk a LOT there because the caliber of photographers who post there intimidate me. It is pretty clique-ish, and sometimes I wonder how long it would take to integrate into the community there. I've been a member for almost 2 years and integration has yet to happen. I don't mind too much at the moment though, I'm sure it'll happen eventually.