Jay Rosen is a liberal media critic, writer, and a professor of journalism at New York University. Rosen has been on the journalism faculty at New York University since 1986; from 1999 to 2005 he served as chair of the Department.

He has been one of the earliest advocates and supporters of citizen journalism, encouraging the press to take a more active interest in citizenship, improving public debate, and enhancing life. His book about the subject, What Are Journalists For? was published in 1999. Rosen is often described in the media as an intellectual leader of the movement of public journalism. {Wikipedia}

http://www.pressthink.org