I'm not very in MMO too. I played a bit to Ragnarok Online with some forum friends but it was only for fun with no other purpose than playing and doing things with friends. I stoped it after a while when it was less fun and when each of us just started to stop one after the other.
Then I played to Aura Kingdom with my cousin. It was a fun game, beautiful enough to fit my standards (yes, I have low standards I know) and I found some nice guild fellows. And I stoped it after some month just when I found a job.

Now my only multi-player online game is FKG (the only multiplayer part is ally system and FKG forum and it's all I need). Aside that, I'm more into solo (pure solo with no or almost no online stuff) games. Anyway, my job take too much time and I just can't spend that much time on any MMO game anymore. Even FKG seems too much sometimes, but I can't jusy leave it like that.