Abstract: Social networking sites are generally used for the communication purpose. In these Social networking sites we can send text messages chatting and share our common interests. The most popularly used social networking sites like facebook, twitter and orkut. In these networking sites we can add different categories of people like friends, relatives, colleagues, School friends and many others. If a person wants to join a networking sites that only contains his/her friend circle and similarly relatives and colleagues and is there any other specific website that only serves for specific purpose. In this paper we are discussing different social networking sites that are used for specific purpose in different parts of world like MyHeritage , Classmates.com, StudiVZ, Flixster, Meetup

Keywords: Facebook, orkut, twitter, MyHeritage, Classmates.com, Studivz, Flixter, Meetup.