Main features
Online social networking services are complex applications with a large number of features. However, these features can be roughly grouped into a few common categories:
User
Community
Content-sharing
Developer
User features are features that relate directly to and with the user. For example, the ability to create and share their own profiles, and the ability to share status and activities are user features. Community features are features that connect users with each other. An example of this is the friends list feature, which shows the number of friends a user has connected with in the social network.
Content sharing features are quite easy to understand. These are features that allow a user to share his self-created content with other users, for example photo sharing or blogging. Social bookmarking features are those features that allow users to share content they have discovered with other users, such as sharing links and tagging items with labels. Finally, developer features...
