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Facebook

Launched in February 2004, Facebook is a social networking service founded by Mark Zuckerberg with his college roommates and fellow students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes. Early investors include Microsoft and Hong Kong tycoon Li Ka- shing, through his namesake charitable foundation. Facebook’s US$16 billion initial public offering in May 2012 generated huge investor interest although the shares subsequently slumped in price.

 
Zuckerberg and Chan at home on their wedding day. Photo: AP

Facebook's Zuckerberg buys homes next door to protect his privacy

He made his fortune by persuading over a billion people to share their lives online, but when it comes to protecting his own privacy Mark Zuckerberg appears to spare no expense: the Facebook founder has reportedly spent US$30 million buying four houses that surround his own home in California.