Heh, I saw this in the recent post list and thought "wtf? I read that a year ago, didn't I?" And sure enough...Lazarus, indeed 
I'll just add a bit here. Jythier and I matched up in online Chess over the last couple of days, and last night finished a game where he bested me at the end in a real nail-biter. I've been looking for a good place to give him a public respectful nod for his skillful play, and BOOM - here's this article again. Perfect. Consider that nod given 
But to the subject, the game between Jythier and myself bore fruit - at least for me - I can't speak for him. Over the last year or so, we have disagreed on many many things. He's very religious, and I'm very not religious, and that of course will cause friction.
But the chess match erased all that for a bit and allowed us to just be two guys on common ground with common goals. The obvious goal - to win - I do not discount, but I really felt it was more important to both of us to just play well. I'll let him agree or disagree with that on his own.
We didn't speak much during the game - at least not with words (there is a chat function on the page the game is played out on) - but I felt it quite a social thing.
Now does that make a good argument for playing video games in general? Well, I think Chess is a little different. Had he and I been on opposite sides of a Team Fortress XBox 360 match, I'm not sure I'd have gotten the same thing out of it, but for now, I will say that online Chess is an exception to any generic rule about online gaming, and if there is one exception, it's enough to disprove a hypothesis.
In closing, thanks again for schooling me in a great game, J. I look forward to our next meeting on that common ground (which I shall probably get to as the weekend unfolds for me.)