Facebook: A social utility that connects people, to keep up with friends, upload photos, share links and videos

Google+: Social network that aims to make sharing on the web more like sharing in real life. Includes an interactive tour and a description of its various features

MySpace: An international site that offers email, a forum, communities, videos and weblog space

Pinterest: A content sharing service that allows members to "pin" images, videos and other objects to their pinboard. Also includes standard social networking features such as follows, likes and profiles

Twitter: Social networking and microblogging service utilising instant messaging, SMS or a web interface