BBS (bulletin board system) and Usenet were social networks that were established before the world wide web was. BBS would allow users to connect to the system through their phone lines. People could post messages and share files, it is also a precursor to the modern web forum.
Classmates.com which was aimed at connecting old friends and classmates from the past. Members may post photographs, announcements, biographies, read community message boards and be informed of upcoming reunions.
The most popular social network site, it offers users a blog, the ‘wall’, ability to fully customise their profile pages, add music and video to their page. Many musicians, filmmakers or models use it to promote their work and connect with their audiences and fans.