Group buying is known in Chinese as tuangou. It is very popular in China, where there is a long and services. The idea of tradition of bargaining for goods product when a large group buying is simple: a business can offer a cheaper price for a Internet forums. group of people are willing to buy it. So group buying is organized through show an interest People contact their online friends to tell them about the deal. If enough people in a product, the deal is on. The customer gets a coupon for a special discount