Probing Question: Are social networking sites useful for business?

(PhysOrg.com) -- If you`re reading this, odds are you have an Internet connection. And if you have an Internet connection, chances are good that you also have a social network profile. Facebook and Myspace - the two most popular social networks - have more than 285 million users worldwide, and Facebook users collectively spend an average of three billion minutes on that site daily.

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