"Meeting" people through private groups and developing a number of friendships with people with whom I otherwise would never have had any kind of contact. Almost all of those have faded since I haven't really played games or been on this site actively in two years or more, but I still look back on it fondly. Also, I met a pretty good friend through this site. He posted a random link in the Halo 3 forum back in late 2008 advertising a LAN about 30 minutes from my parents' house that I happened to see when it was on the front page (and before he got blacklisted for advertising). Went to his LAN, played with a bunch of good guys, and ended up teaming with him for GB and local LANs until Reach arrived.