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What does Facebook deal mean for WhatsApp?

20 February 2014 Last updated at 12:32 GMT

Facebook has announced that it will buy messaging app WhatsApp in a deal worth $19bn (£11.4bn) in cash and shares.

So what does that mean for a service which prides itself on having "no ads, no games, no gimmicks"?

Rory Cellan-Jones explains.