Here are some examples of social media websites:
- Social Bookmarking. (Delicious, Blinklist, Simpy) Interact by tagging websites and searching through websites bookmarked by other people.
- Social Networking. (Facebook, Hi5, Last.FM) Interact by adding friends, commenting on profiles, joining groups and having discussions.
- Social Photo and Video Sharing. (YouTube, Flickr) Interact by sharing photos or videos and commenting on user submissions.