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The Boston Globe

Business

Facebook’s ad challenge

The challenge: making friends with advertisers while keeping friends it has

Facebook Inc. has a dilemma: How can it increase advertising revenue without alienating its network of 845 million friends?

The giant social network makes a fortune from advertising, selling $3.15 billion in online ads last year - 85 percent of the company’s 2011 revenue. But Facebook filed papers this week to make itself a public company; now it has to keep growing to be a good play for investors.

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