Recruit-a-friend for World of Warcraft

Blizzard has announced on its World of Warcraft news site that it's starting a recruit-a-friend promotion.
Every U.S. player of the game will be sent an email with a 10 day trial account invitation which they can give to a friend. If your mate signs up, then you get a free 30 day extension to your WoW account. Looks like American
WoW players will be saying goodbye to another month of their "real" lives.

[Via digg]