From Evernote:

Yahoo! and Microsoft Search Alliance News: Organic Search Update on the Bing Blog - adCenter Blog - Microsoft Advertising Community Clipped from: http://community.microsoftadvertising.com/blogs/advertiser/archive/2010/08/24/yahoo-and-microsoft-search-alliance-news-organic-search-update-on-the-bing-blog.aspx

Hot off the presses! Yahoo English search results are being powered by Bing