In December 2009, Google began customizing its search results for all users, and we entered a new era of personalization. With little notice or fanfare, our online experience is changing, as the websites we visit are increasingly tailoring themselves to us. We’re used to thinking of the Internet like an enormous library, with services like Google providing a universal map. But that’s no longer really the case. Sites from Google and Facebook to Yahoo News and the New York Times are now increasingly personalized, they filter information to show you the stuff they think you want to see.
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