Yahoo hasn't had a search back-end since about the Bing deal. Most everyone on those teams was laid off while they transitioned over. Yahoo BOSS is backed by Bi

Yahoo hasn't had a search back-end since about the Bing deal. Most everyone on those teams was laid off while they transitioned over. Yahoo BOSS is backed by Bing. src: http://searchengineland.com/yahoo-boss-moves-from-yahoos-index-to-microsofts-adds-pay-structure-64140 http://searchengineland.com/yahoo-boss-moves-from-yahoos-ind... src2: I worked on the Yahoo Search team at the time of the deal.