SixDegrees.com is a

social network service A social networking service or SNS (sometimes called a social networking site) is an online platform which people use to build social networks or social relationships with other people who share similar personal or career content, interests, act ...

website that initially lasted from 1997 to 2000 and was based on the '' Web of Contacts'' model of social networking. It was named after the six degrees of separation concept and allowed users to list friends, family members and acquaintances both on the site and externally; external contacts were invited to join the site. People who confirmed a relationship with an existing user but did not go on to register with the site continued to receive occasional email updates and solicitations. Users could send messages and post bulletin board items to people in their first, second, and third degrees, and see their connection to any other user on the site. SixDegrees was one of the first social networking sites of the general form that is in widespread use today. It was followed by more successful social networking sites based on the "social-circles network model" such as Friendster, MySpace, LinkedIn, XING, and Facebook. MacroView (later renamed to SixDegrees Inc.), the company that developed the site, was founded by CEO

Andrew Weinreich Andrew Weinreich ( ) is an American serial entrepreneur. He is a pioneer in the field of social networking and has been starting and building businesses since 1997. Education & career Weinreich graduated from the University of Pennsylvania in ...

in May 1996 and was based in New York City. At its height, SixDegrees had around 100 employees, and the site had around 3,500,000 fully registered members. The site was bought by YouthStream Media Networks in December 1999 for $125 million. SixDegrees shut down one year later on December 30, 2000, then brought back up a few years later.

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