According to Bing this a.m. Today I am happy to share that Bing is powering Yahoo!’s search results in the US and Canada (English only for now, the other languages will come in the weeks and months ahead)
Bye bye Yahoo search, hello Bing. Note the Powered by Bing at the bottom of the Yahoo! search page. Bing notes the migration to adCenter and the great milestone this is for Yahoo and Bing. We as marketers could not agree more, hello two search engines!