Groupon Inc.'s homepage is displayed on a monitor in New York, U.S., on Thursday, June 2, 2011. Groupon Inc., the largest provider of online coupons, filed to raise $750 million in an initial public offering, giving shareholders a chance to bet on the burgeoning daily-deal market. Photographer: Joseph Valenti/Bloomberg via Getty Images
{"Image ImageDescription": "Groupon Inc.'s homepage is displayed on a monitor in New York, U.S., on Thursday, June 2, 2011. Groupon Inc., the largest provider of online coupons, filed to raise $750 million in an initial public offering, giving shareholders a chance to bet on the burgeoning daily-deal market. Photographer: Joseph Valenti/Bloomberg via Getty Images", "Image Copyright": "2011 Bloomberg"}