http://sandradodd.com/videogames/
And a discussion specifically about World of Warcraft:
http://sandradodd.com/chats/wow
It's not just interacting with "youth" internationally. My daughter  
(Michelle in those discussions; she's changed her name to Senna) plays  
with mostly adult guild members, including a husband and wife team (co- 
leaders of the guild) and their friend in the UK. She's met and  
discussed her character and game play with adults at Blizzcon, the  
Blizzard Entertainment convention, and at unschooling conferences.
Senna's also a Pokemon player (Nintendo DS games) and does Wi-Fi  
battles and trades Pokemon with people all over the world. She's met  
and talked to dozens of Pokemon fans on Petopia, the World of Warcraft  
hunter pet site. She is writing a round-robin story about Pokemon with  
those folks (mostly older teens and young adults).
So, assuming these games are antisocial and isolating would be a false  
assumption - at least for unschoolers!
Robin B.
Did you assume that all on your own?
I'm guessing others told you it would be isolating.
But reading a book is isolating, and when someone is reading they want  
others to be quiet and let them read.  So even if he's playing a game  
alone, not online, being engrossed in something and concentrating and  
thinking are not the same as "antisocial."  People don't need to be  
interacting with other people to think and to learn!
My oldest child is 24 now and works for a gaming company.  Ten years  
ago, when he was fourteen, he was hired to run the Pokemon tournaments  
at the gaming store where he had already been hanging around for a  
couple of years and being honest and helpful.  That store had no  
electronic gaming at all.  They sold board games, collectible card  
games (Magic, Pokemon, and scads of others), chess sets, miniatures  
and paints, dice... nothing for computers or gaming systems at all.   
That was VERY social, as those games all need other in-person  
players.  Half the store was tables and chairs, and their motto was  
"We teach the games we sell."
Online video games have those advantages without having to go to the  
gaming store, and people can play with distant friends and relatives,  
and make new friends.
Sandra