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Now Playing: 02-01-12 Marketplace Tech Report

Facebook is expected to file paperwork for its IPO as soon as today. The company may be valued as high as $100 billion. The way Facebook makes money, remember, is from advertising to you. And the more they know about you, the more they can tailor those ads. Also on the show, the enormous pile of presidential campaign money, and the technological ways the candidates are using to get more.