taweili writes "The Economist has a story about Tuangou in China. Tuangou, roughly translated into group purchasing, is basically a smart mob who arrange the meet up over the internet and show up at a retailer at a specific time and use their number to negotiate a discount with the retailer. In the story, a Tuangou group of 500 show up in Gomei (largest home electronic retailer in China) at 4pm on June 16th and negotiate a 10 ~ 30% discount for the group. Gomei not only closed the door to the normal customers but also prepared goody bags for these Tuangou shoppers. Now, that's Power to the People!"