Google ran a sting operation busting Bing copying it's results, the covert operation involved artificially ranking a page for a certain term (hiybbprqag) which nobody was searching for and returned no matches on both Google and Bing, Google then created “synthetic” searches asking few Google Engineers to use Bing Toolbar and Internet Explorer Suggested Sites features to click the artificially ranked page in Google which "Bing" copied proving there case.