Craig Newmark is a Web pioneer, philanthropist, speaker and, by his estimation, one of America’s most recognized nerds. In 1995 he founded craigslist, which to date has seen more than 5 billion classified ads posted. In 2012 he was inducted into the Internet Hall of Fame. In 2016 he created the Craig Newmark Foundation, a private foundation to promote philanthropy and civic engagement through a number of initiatives. He was born in Morristown, N.J., and received degrees in computer science from Case Western Reserve University. He lives in San Francisco and New York.