Blizzard have started a new Recruit A Friend initiative where you as the player invite your friends to start playing WoW and recieve some pretty nice things. If you sign them up for 30 days you get 30 days free. Sign them up for 60 days and you get a new mount called Zhervra. Get them signed up and play alongside them and not only will you recieve triple the xp, you can summon each other from any point in the world. Blizzard also announced that "for every two levels of experience your friend earns, they can grant one level of experience to any one of your characters of lower level." Well, there you go WoW players. Start sending out those invites!