Из пресс-релиза Gartner о стратегических технологиях:
Social media can be divided into: (1) Social networking —social profile management products, such as MySpace, Facebook, LinkedIn and Friendster as well as social networking analysis (SNA) technologies that employ algorithms to understand and utilize human relationships for the discovery of people and expertise. (2) Social collaboration —technologies, such as wikis, blogs, instant messaging, collaborative office, and crowdsourcing. (3) Social publishing —technologies that assist communities in pooling individual content into a usable and community accessible content repository such as YouTube and flickr. (4) Social feedback - gaining feedback and opinion from the community on specific items as witnessed on YouTube, flickr, Digg, Del.icio.us, and Amazon.