Facebook's biggest challenge and its greatest opportunity now lies in mobile devices. Most Facebook users access it using a mobile phone or tablet computer, but the company only started showing mobile ads about 9 months ago.
Facebook said it generated 23%, or $306 million, of advertising revenue from mobile, up from 14% in the third quarter.
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TOWIE star Mark Wright has tied the knot with Coronation Street actress Michelle Keegan at a lavish ceremony in Bury St Edmunds.