"From Lily Allen to David Attenborough, they are all doing it. Social networking, that is. From MySpace, to Facebook to bebo, sites which allow users to conduct their social lives online are booming - and attracting feverish interest from investors and advertisers."

"But is this just a flash-in-the-pan, an internet fad that will soon go the way of CB radio in the 70s? And is it just for the under-25s?"

Read more at http://news.bbc.co.uk/1/hi/technology/6690569.stm