Adam D’angelo: How Mark Zuckerberg’s school friend became co-founder of Quora Adam D’Angelo founded Quora in 2009 along with his friend Charlie Cheever. They both had previously worked for Facebook. In contrast to the website’s launch in June of the same year, Adam D’Angelo was forced to quit in January 2010. The firm was valued … Continue reading Adam D’angelo: How Mark Zuckerberg’s school friend became co-founder of Quora