Two-sided market
Two-sided markets, also called two-sided networks, are economic platforms having two distinct user groups that provide each other with network benefits. The organization that creates value primarily by enabling direct interactions between two (or more) distinct types of affiliated customers is called a multi-sided platform (MSP).
Two-sided networks can be found in many industries, sharing the space with traditional product and service offerings. Example markets include credit cards (composed of cardholders and merchants); HMOs (patients and doctors); operating systems (end-users and developers); yellow pages (advertisers and consumers); video-game consoles (gamers and game developers); recruitment sites (job seekers and recruiters); search engines (advertisers and users); and communication networks, such as the Internet. 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), Mall of America (shopping mall), Match.com (dating platform), Monster.com (recruitment platform), Sony (game consoles), Google (search engine) and others.