Battle.net describes enhancements to Blizzard's World of Warcraft recruit-a-friend program that rewards players for enticing new recruits to take their first hit of this MMORPG. Players will now reap the rewards for this all the way through level 80, earn 30 days of free play for every recruit who upgrades to a full account, get an exclusive flying mount when a recruit passes 60 days of playing time, and more. Thanks Ant.