The risks of social computing can be addressed in systems’ architecture.
The total population on the Internet is 1.6 billion. The majority of users engage in social computing, where numerous online services offer opportunities for sharing information. There are currently 156 social computing sites, but that number is growing to meet increasingly diverse interests. Sites with more than 15 million registered users include Digg, FriendFinder, Facebook, Flixster, Flickr, Friendster, Habbo, LinkedIn, MyLife, MySpace, Orkut, Plaxo, Twitter, YouTube, UStream and Wiki. These services had a total membership of 1.4 billion as of last fall.