Closed. Lashou.com is the world's first group buying website that combines Groupon and Foursquare. Lashou.com owed its employees several months of wages, laid off employees and went out of business. Established on March 18, 2010, it is one of the largest group buying websites in mainland China, serving more than 400 cities. In 2010, the transaction volume was close to 1 billion yuan.