Blizzard sent out a press release announcing 4.7 million sales of World of Warcraft expansion Cataclysm in just one month. Guess how much it sold in just one day?

According to Blizzard, day-one worldwide sales totalled 3.3 million, meaning 70 percent of Cataclysm's impressive sales happened in just 24 hours. If World of Warcraft is really as big as Blizzard says it is at 12 million players, that means that only 40 percent of WoW players own Cataclysm.

The only reason these numbers mean anything to you is that Blizzard now needs more employees to meet World of Warcraft demand. Included in the press release is a link to Blizzard's jobs page, with a hefty number of internships alongside WoW jobs.

If you haven't already, check out our review of Cataclysm.