David Cameron Urges Users To Boycott Websites That Don't Deal With Abuse

Made the comments after a teenager killed herself after being bullied online

Social networking websites which do not "step up to the plate" and tackle online abuse should be boycotted, the prime minister has said.

David Cameron told the BBC that the death of 14-year-old Hannah Smith - who had been subjected to web bullying - was "absolutely tragic".

He said those running the websites had to "clean up their act" and if they did not, people should boycott them.