It really depends on the game I'm playing.

I meet up with friends online and play games at Pogo quite often. I used to play games (like Diablo I and II) online with friends on a daily basis, in fact I have a friend desperately trying to get me into World of Warcraft now.

I usually play my VV or other sim games by myself though...too many Guiding Hands can send a village into chaos. ;\)