Blizzard Entertainment today announced that World of Warcraft's second expansion, Wrath of the Lich King, has sold more than 2.8 million copies in its first 24 hours of availability, making it the fastest-selling PC game of all time. This eclipses the previous record of nearly 2.4 million copies sold in 24 hours, set in January 2007 by Blizzard's first World of Warcraft expansion, The Burning Crusade. To learn more, click here.
From: http://www.wow-europe.com/en/index.xml