Bill Gates world's richest person again

Bill & Melinda Gates 2009

The 300 richest people on the planet are $524bn (£319bn) better off than this time last year, with the world's richest man, Microsoft founder Bill Gates, increasing his fortune by $15.8bn to $78.5bn over 2013.

Twerking dances its way into 2013 Google search rankings

Miley Twerking

Miley Cyrus did it, Lily Allen refused to do it, one London gym started offering lessons in it. And on Tuesday twerking – the frenetic, buttock-wiggling dance – also topped Google's list of the trends that Britons were trying to discover the meaning of online this year.