Social media sites are constantly changing their settings and privacy policies. For the most up to date information see each site's own information pages.
Members create a user profile, they can then create and join groups if they wish. Allows users to share photos, interests, music and comment on other profiles.
Twitter users exchange public content in the form of 140 character messages sent from the webpage or from a user's phone. Users may have a public or private account and choose to view the message of other users. The messages are referred to as 'tweets'.
Users create profiles, share photos, journals, music and videos. Users can choose if the content can be viewed by friends only, 18 and older, and everyone.
Users create their own social network and can control membership and privacy.
Users share music, videos, photos and discussions through profiles and groups.
A social networking site for children aged 6 to 14. This is a website that is moderated and allows parents to place their own restrictions.