Since I'm starting this I suppose I should go first

I chat to Lt. CannonFodder a lot, pretty much every day. He's the only person apart from WF that I've actually met in person. (Which is ironic considering that I know at least a few members live within 10 miles of me and he's from Finland.

I used to talk to Miburo\Lady Rose about as much (Another Finn!

I've already mentioned Skippy on the other thread.
Apart from that I only chat to other people occasionally or mainly about FS2 stuff.