Reid Hoffman has worked the entire tech-startup ecosystem: he cofounded LinkedIn in 2002, used the money he made there to become one of Silicon Valley’s most prolific angel investors, invested early in Facebook, Zynga, and many others, and is now a venture capitalist at Greylock Partners. At Greylock, which he joined in 2009, Hoffman has focused his investments on consumer Internet companies that use software to create networks of millions of users, such as the home-sharing site Airbnb.
