After the announcement of Yahoo!-Bing alliance last year, Yahoo! has now diverted its traffic data to Bing’s Webmaster Tools. This is one step closer to Yahoo! recent announcement that it shall be shutting down its webmaster tools as soon as the market adopts the Bing standards.
Hence, from now on, Yahoo! and Bing searches shall be displayed together undifferentiated, and Yahoo’s frontend shall be powered by Bing’s formidable backend.