Groupon is an American worldwide e-commerce marketplace connecting subscribers with local merchants by offering activities, travel, goods and services in more than 28 countries. Based in Chicago, Groupon was launched in November 2008, and the first market for Groupon was Chicago, followed soon thereafter by Boston, New York City and Toronto. By October 2010, Groupon was available in 150 cities in North America and 100 cities in Europe, Asia and South America, and had 35 million registered users.[3][4][5][6] By the end of March 2015, Groupon served more than 500 cities worldwide, nearly 48.1 million active customers and featured more than 425,000 active deals globally.[7] read more