Blizzard Entertainment has broken PC sales records by selling over 2.4 million copies during the first 24 hours of availability of their expansion World of Warcraft: The Burning Crusade. According to their press release, the company sold over 1.2 million copies in North America and 1.1 million copies in Europe, and over 1.7 million users logged in the first day. The press release did not state how many of those people wound up queued for their game servers, or how much productivity is dipping during the week of the game's release. Blizzard assures gamers that have not yet purchased the expansion that more copies are shipping daily; while GameStop and EBGames made an insightful decision to just order enough copies to cover pre-orders, local Fry's Electronics stores reportedly have stacks of the game available for purchase.
Full press release at the source