There's so much drama for this Menlo Park social networking giant, led by Mark Zuckerberg, above, that there's a Wikipedia page dedicated to Facebook criticism. Many users were confused by the new Timeline profile format revealed in September. After months of will-they-or-won't-they speculation about the company's IPO, Facebook continues to move cautiously toward a projected May offering. Other controversies this year involved user-created pages about rape, companies ordering job applicants to divulge their Facebook passwords, the eco-friendliness of its data centers and more.
Paul Sakuma / Associated Press
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