Meet the Facebook Mafia
Adam D'Angelo and Charles Cheever
D'Angelo began working at Facebook the summer after his sophomore year at California Institute of Technology and eventually became the company's chief technology officer. Cheever was Facebook's software engineering manager for three years, until he and D'Angelo left to found Q&A website Quora in April 2009. Quora's $11 million in initial funding came from fellow former Facebooker Matt Cohler, a partner at Benchmark Capital. Back before Facebook acquired Instagram, D'Angelo played a Godfather-like role at the fledgling start-up—he helped the company find engineers, gave feedback on initial features, and was an initial investor.