WASHINGTON POST - Jan 18 - Hinge.co launched this summer as the love child of Facebook and Friend-setups. Justin McLeod, CEO came up with the idea after eyeing a cute girl in one of his Harvard Business School classes and later finding that they had a dozen Facebook friends in common. Together with Bennett Richardson, CMO, and Matt O'Donnell, CTO, Hinge was born. Facebook users sign up for the Hinge game and by answering a series of questions such as "Who throws the best parties?. The game develops a list of compatible friends of friends.