Roy Greenslade is Professor of Journalism at City University London, writes a daily blog about the media for The Guardian website and is the media columnist for the London Evening Standard. He has been a journalist for 48 years, starting on a local weekly and then a regional evening. He has worked for most of Britain’s national newspapers. He was editor of the Daily Mirror, 1990-91. He is the author of three books, including a history of British newspapers, Press Gang.