CHICAGO, IL - JUNE 10: The Groupon logo is displayed in the lobby of the company's international headquarters on June 10, 2011 in Chicago, Illinois. Groupon, a local e-commerce marketplace that connects merchants and consumers by offering goods and services at a discount, announced June 2 that it had filed with the Securities and Exchange Commission for a proposed initial public offering of its Class A common stock. The company, launched in Chicago in November 2008 now markets products and services in 43 countries around the world. (Photo by Scott Olson/Getty Images)
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