I've posted in dozens of forums and am probably registered at somewhere between 50 and 100 forums, including those that have died out. I've frequented a handful through the years including the Gamer's Alliance, Aiyon, Something?, CricketWeb, United Rant and probably a few others. The only one I still regularly check is EoFF, though. I still post at others when I need to, such as OcUK, but these are rare occurances.

If you count Facebook, I frequent that.