Google Now Personalizes Logged-Out Searches

Google has long had the ability to track a user's web history and offer personalized results, based on how often you search for, and click on, certain results. CNET's Webware points out that Google has also started customizing results on browsers that aren't logged into a Google account as well, done through an anonymous browser cookie. You can turn it off, but it's worth keeping in mind that, if you're seeing the same kinds of results get higher ranking, it's probably because Google thinks your computer wants that kind of thing