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About one third of Facebook's 750 million users access the site from mobile phones.
About one third of Facebook's 750 million users access the site from mobile phones.

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    How Facebook makes money

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How Facebook makes money

Facebook has beat its Q3 revenue projections, but how does the social site make its money? CNN's Samuel Burke explains.

How Facebook makes money

Facebook has beat its Q3 revenue projections, but how does the social site make its money? CNN's Samuel Burke explains.