Social networking site is a social networking site. There are more than 100 social networking sites in the world today. The most popular social networking sites are - facebook.com, twitter.com, instagram.com, linkedin.com, skype.com, whatsapp.com etc ... You can visit more than 60 social networking sites from this link. Websites on the Internet that can communicate with each other from any part of the world are called social networking sites or social networking sites.