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vacations, advertisers love to use this information to target ads at every
sixth person on earth.
But even as the advertisers generate $4 billion a year for Facebook,
users can ignore the ads. Facebook remains a place to solve problems
through crowdsourcing, promote political ideas, and share life’s joys
and sorrows with friends and relatives. What began as computer code
in Mark Zuckerberg’s dorm room has grown into an entirely human en-
deavor. Today Facebook encompasses a world community linked by the
thoughts, dreams, and desires of its 1.4 billion users.
