 Examples of well known companies employing two-sided markets include such organizations as American Express (credit cards), eBay (marketplace), Taobao (marketplace in China), Facebook (social medium), LinkedIn (professional medium), Mall of America (shopping mall), Match.com (dating platform), AIESEC (leadership development for youth by placing talent in companies), Monster.com (recruitment platform), and Sony (game consoles).Benefits to each group demand economies of scale.Consumers, for example, prefer credit cards honored by more merchants, while merchants prefer cards carried by more consumers.