20 most useful social networking sites

For both work and pleasure, these 20 social networking sites are the most useful to any busy IT professionals

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Digg is the largest and most popular social news Web site on the Internet. Covering all topics including; politics, entertainment, technology and general news. Includes a separate video and image section. Allows users to share articles with their friends list or post to the most popular blog sites directly on a topic through Digg.

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20 most useful social networking sites

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