The Blizzard has brought extended statistics online. Via the World of Warcraft webpage you can easily access statistics on auctions sold, created items, dangerous creatures, gathered items, looted items and quests completed.
Who would have thought that Copper Ore is the most gathered item? Or Vaelastraz the Corrupt the second most dangerous creature in the game? (Well Vaelastraz has caused us more problems than he used to due to overaggro with imab weapons – hehe)