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Facebook is a social networking service that lets you connect with friends, co-workers, and others who share similar interests or who have common backgrounds. Many use it as a way to stay in touch after finishing school, or as a way to share their life publicly. What makes Facebook different from other social networks are its extensive privacy controls, its development platform, and its large and quickly growing user base. Facebook has been called the "thinking person's" social network. Compared to many other social networks, Facebook gets new features and improvements on a regular basis.