Over the past few fiscal quarters, it has become quite obvious that Blizzard's World of Warcraft is Vivendi's main source of income, driving its revenue month after month, but we never really knew how much cold hard cash it brought in. As the year came to an end, Vivendi made its 2007 tally, $1.51 billion for the year, up 26% compared to 2006, $1.2 billion coming from Blizzard's MMORPG.