10/04/2012 09:10 am ET Updated Dec 04, 2012

Facebook's 'Next Billion': A Q&A With Mark Zuckerberg

In 2004, Mark Zuckerberg launched Facebook (FB) from his Harvard University dorm room, hoping to see what his classmates were up to on campus. The following eight years brought international fame, unimaginable wealth, a hit Hollywood movie, a disastrous initial public offering, a sagging stock price--and one unprecedented achievement. On Sept. 14, the company reached 1 billion active users. In an exclusive interview with Bloomberg Businessweek's Brad Stone and Ashlee Vance, Zuckerberg reflected on the milestone and what's next for his company as it resurfaces from a wave of negativity.

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