Commercials for junk food are being banned on children's television, but advertisers are moving onto a new battlefield - the internet. Helen Pidd reports.
Teachers are demanding that YouTube be closed down for refusing to remove violent, threatening and sexual content involving children and staff. By Anushka Asthana and David Smith.
Websites such as YouTube and ratemyteachers.com should ban video clips of teachers or pupils who have been the target of cyber-bullying, the education secretary, Alan Johnson, will tell a teaching union conference today.