The Winklevoss brothers are a pair of twins from Southampton, USA. In 2004 they have launched ConnectU, a social networking website originally intended for the students of the Harvard University. During development, they were in close contact with Mark Zuckerberg. After Zuckerberg's Facebook has become by far the most popular social networking platform in the world, the Winklevoss brothers had sued him for allegedly stealing their idea, and have ultimately managed to win $65 million worth of compensation. Since then, the Winklevoss were prominent venture capital investors, especially active in the market of Bitcoin. They have led a seed funding round for the Bitinstant payment processor and in 2013 claimed to own nearly 1% of all existing bitcoins.