Anyone can write a product review, and everybody reads them. But can you trust them? I refer, of course, to reader or user reviews, the kind you find on Amazon, Buy.com,
Epinions,
PC World, Yelp, and even the sites of tech product manufacturers, such as Dell. They're everywhere.
But it's the fraudulent reviews--positive reviews contributed by "readers" paid by the company being evaluated--that worry critics and advocates alike.
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