From your comment: I suspect Bing is making use of data that is typed in the toolbar or browser's search box ... not data captured from text typed directly into

From your comment: I suspect Bing is making use of data that is typed in the toolbar or browser's search box ... not data captured from text typed directly into Google's search page. From the official Google blog: We asked these engineers to enter the synthetic queries into the search box on the Google home page, and click on the results, i.e., the results we inserted.