As I see it, the days of people joining forums has passed. Why? I do not know. I do believe that this should not be the case. Forums are brilliant inventions, and there are loads out there, meeting new people of similar interest, discussing recent games, exchanging opinions. There's also my favourite part - Leagues and Tournaments, some with prizes, some for the sheer fun of it.
I urge you all to go out there onto the internet and join a site, because without you, the community forums cannot flourish! Get out there, guys and gals, and don't be afraid to start posts! No forum will turn down new posts :) (as long as they're clean!!)
Invite your friends along, too, and before you know it, these sites will be bustling with members, events, leagues, discussions! Oh, and they're also a good place to pick up some news on the latest games :)