One of the most important developments in the history of online shopping is the creation of the price-comparison site. This is a site that helps you compare prices between multiple online retailers. In essence, you let the price-comparison site do your shopping for you; all you have to do is evaluate the results.
As you might expect, searching for bargains is right up Google’s alley; it plays right into Google’s strength with search technologies. In fact, Google offers several different ways to comparison-shop online—Google Product Search, Google Catalogs, and Google Base.
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