I have just the one forums.hostmatrix.org its primary purpose was originally to support our free hosting packages but there is a decent bunch of guys and gals there too.
I've got one main forum, it's purpose for gamers to talk with gamers. It's run with vBulletin 4.0. http://www.gamertalkforums.com
*sigh* Necro... A five year necro aswell, largest I've seen so for... But m'eh, just to keep it going; http://www.combatfps.com/
Career Forum, very new, about 4 months old. Starting to get some signups now and some interesting posts. Never run a forum before so lot of learning required. vBulletin Threads: 215, Posts: 327, Members: 1,319, Active Members: 168
The Spain Forums My forum has been around since 2006. Started off as just another forum about Spain and Spanish life. Since starting off I have tried all the normal tricks to be noticed. Now I have joined forces with a local action group fighting for peoples rights in Spain and the illegal housing problems suffered here by ex-pats from many countries. We have had mentions in a lot of local Spanish news papers and because of the information thats disclosed, constantly suffer the threats of being hacked or DOS attacks. The action group I support and the information disclosed on a daily basis, is one of a kind here in Spain. Since a lot of similar action groups do this kind thing and share information behind closed doors and out of public view. With any forum, you need to find an original slant to be different from the others. Stops me getting bored.