Barry Schwartz at Search Engine Land is reporting that an email sent out to Yahoo! advertisers that reveals that Yahoo!, who have been testing Bing results in their search queries offline already, will for the first time this month begin testing using live search results:
Though much of our testing is already happening offline, this month we’ll also test the delivery of organic and paid search results provided by Microsoft on live Yahoo! traffic.
Yahoo! and Microsoft agreed to a “Search Alliance” almost exactly one year ago, and they have been aiming for a transition before this year’s holiday season.