Texas HoldEm Poker has this week's winning hand among fastest-growing Facebook games by MAU

Zynga’s Texas HoldEm Poker is this week’s fastest-growing Facebook game by monthly active user, bringing in 2.7 million monthly active users for a 9 percent gain. Zynga’s CastleVille took No. 2, showing much greater growth over last week, up 17 percent with 1.4 million MAU. King.com’s Pet Rescue Saga came in at the No. 3 spot with 1.2 million MAU, a 6 percent gain amounting a total of an estimated 22 million MAU. PopCap’s Bejeweled Blitz came in at the No.