The core idea is that, when people ask for directions from A to B, it shows that people are interested in B, especially if they happen to be at or near A.
Now, certain very large search engines have massive logs of people asking for directions from A to B, hundreds of millions of people and billions of A to B queries. And, it appears this data may be as or more useful than user reviews of businesses and maybe GPS trails for local search ranking, recommending nearby places, and perhaps local and personalized deals and advertising.
Amplify’d from glinden.blogspot.com
See this Amp at http://bit.ly/kN5KhM