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Now Playing: 10-22-12 Marketplace

Who is the fabled "undecided voter" in this election? UCLA professor Lynn Vavreck explains. Meanwhile, some employers are actually telling their employees who to vote for -- but is that legal? Tomorrow, Facebook will reveal how they are doing on mobile advertising, an area in which a number of Internet giants are struggling. Now that Lance Armstrong has been stripped of his endorsements and Tour de France titles, we look at what else he has to lose. The website Ancestry.com was just sold for a whopping $1.6 billion. And Scott Tong reports on fracking in Ohio.