Just 3 weeks ago, the Facebook game, FarmVille, had only over 73 million monthly active users. Now the game has over 76 million monthly active users! This is not surprising because Zynga never fails to add something new to the game. In fact, so many new things spiced up the game the past few weeks. They released Super Bowl special items, last week. These include: the oh-so-cute Chicken Cheer and Chicken...