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Sheryl Sandberg

Facebook COO Sheryl Sandberg moved up the billionaire ranks when she sold her stocks on Halloween. The Silicon Valley trailblazer has been outspoken recently about work-life balance. (Spencer Platt/Getty Images)

Year in Review 2012: Female Fights

January 1, 1970

It's an odd notion, really, that a group making up a tad more than half

the American population needs its worth to be considered separately. However,

female accomplishments—and political imbroglios—certainly triggered feverish

online searches on Yahoo!.