There’s a new game designed by Microsoft, designed to help make Bing a better search engine. The game is named Page Hunt and it asks users to submit search queries that they think the site presented to them, should show up for, in Bing. The results are then scored and players can earn different points for different answers.
http://searchengineland.com/microsoft-hopes-to-improve-bing-with-page-hunt-game-23113