The is a good example of this. Third-party reviews sites like Yelp were tossed in favor of the company's now in-house services. These types of actions are exactly why the Federal Trade Commission has been looking into Google.

One of the allegations the FTC is looking into is whether Google in search results. No doubt its moves could be seen as favoritism, given the prominent placement of Zagat's ratings, and probably Frommer's as well.

The FTC has already shown it will come down hard on Google after regarding breaching the privacy of users of Apple's Safari web browser.

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