!!! Overview
[{$pagename}] or [Social Networking Service|Social network], is a platform to build [Social network] among [persons] who share interests, activities, backgrounds or real-life connections.[{$pagename}] have reduced the [frictions] of the formation and interactions of [Social network] by reducing the time, distance and difficulty of interaction; just as the [World Wide Web] has done for business.A [{$pagename}] consists of a [Social Identity], his or her social [Relationship], and a variety of additional services.

[{$pagename}] are typically [websites] that allow individuals to create a [Digital Identity], to create a list of users with whom to share connections, and view and cross the connections within the system.

[{$pagename}] often provide [Social Login] as an [Identity Provider (IDP)] ([Social Identity Provider]) to [Relying Parties|Relying Party]

[{$pagename}] have many smaller [Social networks] within them.

!! Well Know 
Popular methods now combine many of these, with American-based services such as:
* [Facebook]
* [Google]+
* [LinkedIn]
* [Instagram]
* [Reddit]
* [Pinterest]
* [Vine]
* [Tumblr]
* [Twitter] 

Widely used worldwide
* Nexopia in Canada;
* Badoo
* Bebo
* Vkontakte ([Russia])
* Delphi, Draugiem.lv (Latvia)
* Hyves (The Netherlands)
* iWiW Hungary)
* Nasza-Klasa (Poland)
* Soup (Austria)
* Glocals in Switzerland
* Skyrock
* The Sphere
* StudiVZ (Germany)
* Tagged
* Tuenti (mostly in Spain)
* [Myspace]
* Xanga and XING in parts of Europe
* Hi5 and Orkut in South America and Central America
* Mxit in Africa
* Cyworld, Mixi, [Orkut], Renren, Friendster, Sina Weibo and Wretch in Asia and the Pacific Islands.

!! More Information
There might be more information for this subject on one of the following:
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* [#1] - [Social web|Wikipedia:Social_web|target='_blank'] - based on information obtained 2017-07-04-