Adam D'Angelo is Founder & CEO at Quora. I'm interested in social internet products, machine learning, and other applications of computer science. He was chief technology officer of Facebook, and also served as its vice president of engineering, until 2008. In June 2009, he started Quora. He invested $20 million of his own money into Quora as part of their Series B round of financing. He is a member of the board of directors of OpenAI, and an investor in internet companies.