None. I haven't found a forum that has a community as good as this one, so I've stopped trying.

I have accounts on 10 other gaming forums, be it official game company forums like the Bioware forums or the Eidos forum, or gaming news websites like Eurogamer.

I'm frankly a bit surprised I haven't joined the Irrational Games forum yet though, I was one of the very first to join the 2K forum back when the original Bioshock was in development. And they are one of my favorite developers (which is still alive) thanks to games like System Shock 2, SWAT4 and Bioshock. Oh well

Same. I've been peeking in on the Dishonored forums here every now and then, though.

I've visited Cinemassacre sometimes when James Rolf puts up his Angry Video Game Nerd or other videos up.

The Bungie forums, though I haven't gone to the mains since they removed most of the Halo stuff; I basically stay in one private group, and that's it. Other than that, GameFAQs forums, mostly the Comic/Graphic Novel board, but if there's a game that's coming out/came out recently, I'll stick around on its Board until I'm sick of it.

I'm pretty active in Paradox Interactive forums (some 6,000+ posts)

Obsidian forum

I'm also on the Minecraft Forums, same name, same avatar. If you regular there say hi.

As of late, I don't frequent many game forums. Or any forums. I only join a forum if I have a question of a game I'm playing, then when I'm done playing, I "disappear." One of those.

Occasionally still post at Obsidian forums since I have long-term history there. When Borderlands2 comes out I'll probably start posting at their forum again. Otherwise..mostly here, and mostly in CD now.

Demon's souls wikidot (english) forums. That's about it.

I used to post on Scorehero (Guitar Hero/Rock Band) and a GTA forum (don't remember which one), now I post here. I stopped going to those websites in March 2009, that's when I got Fallout 3.

The Nexus is the only other forum I go to and even that is few and far between. 56 posts in a little under 3 years there, I'm just not too interested in other gaming forums. I'm not sure why I stuck with this one, maybe it's the tasty fishy sticks they give us...Mmmmm, fishy sticks

Also i just wanted to mention also. I was on Gametrailers, but i got banned. I was a level 12 with almost a good amount of friends. I do visit the forums once in a while but i'm not allowed to post or send messages. It all started with a religious thread. lol

I made an account on, like, the day the Arkham City forums opened, hoping I could be one of the cool old members, and then forgot to post there ever again

None really and those that I do I only browse. I am not a member of any other game site

I read RPS, GI, BioWare but I'm not posting.

I visited the Call of Duty forums for a while back when MW2 came out. Never again.
I visited the Battlefield 3 forums a good bit when it came out. Never, EVER, again.
I visited the Mass Effect forums when ME3 was nearing release. Probably the second best community I've seen, with Bethesda being the first. I've never posted in the Mass Effect forums. They don't take you seriously if you don't link your forum account to your games. I'm not going to do that and risk getting banned and locked out of my games.

And that's really about it. Used to frequent the Runescape forums too, so I guess that counts. Was actually pretty fun making my fortune in that game.

Yeah, there are a few. Every once and a while when bored and wanting to helpful on a trivial level rather than helping people on things that matter I'll post in those sections

Through the Looking Glass and Eidos

FFXI Allakhazam forums, and Giant in the Playground forums. That's pretty much it.

This is the only game forum I'm a member of.

none

I'm signed up on several (like Bioware & WoW), but the only ones I sometimes read (& rarely post on) are the General Video Games forum at Rottentomatoes, RPGamer.com, and the Minecraft texture mod forum.