Blizzard asked for real-life stories from players a little while ago, and now they've posted a pretty big collection of them over on the official site (this page was around last year, but they've added many stories since then). As Bornakk says, these are personal accounts from players of how playing the game with others has helped them grow relationships in real-life. I'm not sure what exactly the point of posting these is (maybe Blizzard wants to stave off some of that negative media reporting about the game and addiction to it), but then again, if you dive into a few of these, you can see that they don't really need a point -- they're really interesting (and in some cases pretty heartwarming) stories about how players are using this game to enrich real-life relationships.
They're still accepting more stories as well, so if you've got a good tale of some WoW-sharing in real-life, hit them up over on the submission page and put yours in the mix. Hopefully Blizzard will figure out a way to get these out into the real world -- harsh stories about addiction are so easy for the media to jump on, but great stories like these are the real reasons we all play this game.