social networking websites

A Web site that provides social network between people interested in a particular subject,  together  to increase their circle of acquaintances. There are dating sites, friendship sites, sites with a business purpose and hybrids that offer a combination of these. Globally, hundreds of millions have joined one or more social sites such as Facebook, MySpace and LinkedIn.
   
Site's member create there own profile with biographical data, pictures and any other information they choose to post. They communicate with each other by making their latest thoughts public in a blog-like format or via e-mail, instant messaging, voice or videoconferencing to selected members.
The site which  enable the member to invite other friends of friend in their personal network n also enable to share photos, thoughts , video n other links etc.