So if you have seen a spike in your Bing Webmaster Tools traffic charts, this is the reason why. You should see your impressions and clicks data spike up, while the click through rate numbers may fluctuate from the norm as well. Since Bing now fully powering Yahoo search’s organic results, virtually in most geographic locations now, Bing has decided to integrate their data in the tool.
There are many webmasters who would love an option to filter this data by search provider, i.e. see Bing vs Yahoo data but currently it does not seem possible.
