He left Facebook in 2008. In June 2009, he started Quora with Charlie Cheever, another early Facebook employee.
Adam D’Angelo attended California Institute of Technology, where he graduated with a bachelor’s degree in Computer Science and a 4.0 grade point average. While in college, he was one of the top 24 finalists in the international Topcoder Collegiate Challenge. He also competed in the Association for Computing Machinery collegiate world programming contest. He placed second in 2004 and first in 2003. And in 2002, D’Angelo won the silver medal in the International Olympiad in Informatics.
Fortune magazine included D'Angelo as runner-up in its 'Smartest people in tech' article.