Facebook, Inc. operates as a social networking company worldwide. The company builds tools that enable users to connect, share, discover, and communicate with each other; enables developers to build social applications on Facebook or to integrate their Websites with Facebook; and offers products that enable advertisers and marketers to engage with its users. As of February 2, 2012, it had 845 million monthly users and 443 million daily users. The company was founded in 2004 and is headquartered in Menlo Park, California.
Zynga Inc. develops, markets, and operates online social games as live services on the Internet, social networking sites, and mobile platforms. The company offers its online social games under the CityVille, Zynga Poker, FarmVille, CastleVille, FrontierVille, Mafia Wars, Word with Friends, Hidden Chronicles, Zynga Bingo, Scramble With Friends, Slingo, and Dream Heights names. Its games are available on various platforms, including Facebook and other social networks, as well as mobile platforms, such as Apple iOS and Google Android worldwide. The company was formerly known as Zynga Game Network Inc. and changed its name to Zynga Inc. in November 2010. Zynga Inc. was founded in 2007 and is headquartered in San Francisco, California.