World of Warcraft is offering a month of free subscription to those who could coerce former WoW players to come back to the game. This works by sending a "Scroll or Resurrection" to friends who have quit the game. If they decide to return, then those who invited them will get a free month's worth of game time.

Those who are invited to come back also get an incentive. If they decide to try the game out again they get to play The Burning Crusade for 10 days for free. However, note that they have to re-subscribe as a paying gamer for those who invited them to get their free month of gaming.

The promotion is similar to (and is in fact a new version of) WoW's recruit-a-friend program. The mechanics are the same, and the only difference would be that the Scroll of Resurrection is targeted at players who have quit the game.