Adam D’Angelo is the co-founder and CEO of Quora, the Q&A platform that empowers people to share and grow the world's knowledge. Since 2009, Quora has grown to serve over 100 million monthly unique visitors from around the world with a library of knowledge featuring more than 1.5 million topics—ranging from business and technology, to politics and science, to arts and entertainment. Prior to co-founding Quora, Adam served as CTO at Facebook, where he oversaw new product development and led the e...