Jeff Weiner joined LinkedIn in December 2008 and has helped build it into the Web’s largest and most powerful network of professionals. Under his leadership, LinkedIn has significantly expanded its global platform and grown its membership to more than 300 million members around the world. Previously, Jeff was an Executive in Residence at Accel Partners and Greylock Partners, where he advised the firm’s consumer technology portfolio companies and evaluated new investment opportunities. Prior to that, he served as Executive Vice President of Yahoo’s Network division, a roughly $3 billion annual revenue business. Before Yahoo, Jeff spent more than six years at Warner Bros., where he helped oversee the company’s online efforts and developed the initial business plan for Warner Bros. Online in 1994. In addition to LinkedIn, Jeff also serves on the boards of Intuit, DonorsChoose.org, and Malaria No More. He holds a B.S. in Economics from The Wharton School at the University of Pennsylvania.