For those of you who haven't picked up World of Warcraft: Cataclysm yet, Blizzard Entertainment is now offering a 10-day free trial of their latest expansion. So if you want to see what all the fuss is about, just head over to the official free trial page and sign-up!
Note: you must own a full version of WoW and the previous two expansions to participate in the Cataclysm free trial.