It is a trust I value, but -- as it is dependent on the good graces of Facebook -- it is a trust I can live up to only by unfriending this particularly anti-social social network.

CNN: Why I'm quitting Facebook

Bebo said it also worked with a variety of organisations, including anti-bullying groups, the Home Office internet task force on social network, and the Department for Education.

BBC: NEWS | UK | Wales | South West Wales | Teens arrested over web bullying