Also, Google seems just as useful and accurate on a public computer, or a friend's laptop, as on my own (Android) phone. I read somewhere that user input, locat

Also, Google seems just as useful and accurate on a public computer, or a friend's laptop, as on my own (Android) phone. I read somewhere that user input, location, and searches immediately before do all the heavy lifting when it comes to returning good results, whether organic or ads. And it rings true when you use Google. Frankly, I don't think they have actually figured out how to use all that personal info for anything (yet?).