Social computing tools are feature rich and powerful. They are diverse and help to solve a series of communications problems. They provide information to help connect people. Sites such as Ning and MySpace segregate communities into specialist areas, and blogs, wikis, forums and instant messaging applications enhance the interaction on the sites themselves. They propagate information by word of mouth networking and connections. They earn their revenue through paid-for advertising and sponsorship. They can be used to collate targeted groups. These sites can operate for professional purposes or purely for hobbyists. LinkedIn, which positions itself as a business networking site, is also a great source of job listings and a ...

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