Group buying is a trend that had incredibly growth throughout 2010. Group buying, which refers to social buying or collective buying as well, is the buying an offer which has been significantly reduced, due to the fact that it is only valid if enough buyers are found.
From the graph above, you can take a look at the number of monthly unique visitors from the top 2 group buying websites in North America: LivingSocial, and Groupon. As you can see, another player in the group buying industry, Tippr, does not even come close to the number of monthly unique visitors from LivingSocial and Groupon throughout the period April to December 2010. Here is a short review of these 2 key players in the online group buying industry.