Jeff Jarvis is the proprietor of one of the web s most popular and respected blogs about media, Buzzmachine.com. He heads the Tow-Knight Center for Entrepreneurial Journalism at the City University of New York. He was named one of a hundred worldwide media leaders by the World Economic Forum at Davos in 2007 11 and was the creator and founding editor of Entertainment Weekly magazine. He is the author of the forthcoming book Public Parts: How Sharing in the Digital Age Improves the Way We Work and Live.