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"Speaking from Facebook's &amp;quot;awesome&amp;quot; event at its Palo Alto headquarters, CEO Mark Zuckerberg has spent quite a bit of time talking about numbers. Zuck says that the past 5 ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/facebook/2011/07/06/facebook-confirms-750-million-users-sharing-4-billion-items-daily/http:/www.bbc.co.uk/news/business-12889048/>