Zynga, Inc.

Zynga Game Network lets wannabe mob bosses, farmers, and poker champs get their game on. The company is the world's largest social game developer with titles such as Mafia Wars, FarmVille, Café World, and Zynga Poker. More than 60 million users per day access these free online games through social networking sites Facebook, MySpace, and Yahoo!. They can also be downloaded onto Apple iPhones. The company makes money from selling virtual goods and game credits via credit card and PayPal to users within the games; it also sells prepaid cards worth virtual currency at 7-Eleven, Best Buy, Target, and other stores. Zynga is owned by CEO Mark Pincus, who founded the company in 2007 and named it after his late dog Zinga