http://www.techieapps.com/googles-future-what-the-search-engine-will-look-like-in-next-20-years/
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US residents can opt out of "sales" of personal data.
After Twenty years, Google won’t just provide you with what you are searching for but it could know what you desire before you know it yourself. That’s according to Marissa Mayer, Google’s 20th hire and the company’s vice president of maps and location services.
http://www.techieapps.com/googles-future-what-the-search-engine-will-look-like-in-next-20-years/