Editing Virtual community (section)

=== Internet-based ===
The explosive diffusion<ref>{{Cite journal|last=Porter|first=Constance Elise|date=1 November 2004|title=A Typology of Virtual Communities: a Multi-Disciplinary Foundation for Future Research|url=https://academic.oup.com/jcmc/article/10/1/JCMC1011/4614445|journal=Journal of Computer-Mediated Communication|language=en|volume=10|issue=1|pages=00|doi=10.1111/j.1083-6101.2004.tb00228.x|access-date=29 September 2019|archive-date=27 December 2019|archive-url=https://web.archive.org/web/20191227145613/https://academic.oup.com/jcmc/article/10/1/JCMC1011/4614445|url-status=live|url-access=subscription}}</ref> of the Internet since the mid-1990s fostered the proliferation of virtual communities in the form of social networking services and online communities. Virtual communities may synthesize [[Web 2.0]] technologies with the community, and therefore have been described as Community 2.0, although strong community bonds have been forged online since the early 1970s on timeshare systems like [[PLATO (computer system)|PLATO]] and later on [[Usenet]]. Online communities depend upon social interaction and exchange between users online. This interaction emphasizes the [[reciprocity (social psychology)|reciprocity]] element of the unwritten [[social contract]] between community members.