Last week, Yahoo announced that it had begun transitioning Bing results into Yahoo results – a product of the Search Alliance between Yahoo and Microsoft. Now, the companies have announced that the transition of organic results in the U.S. and Canada is complete.

This applies to web, image, and video search on Yahoo for both the desktop and mobile experiences of Yahoo Search.

"With this week’s milestone behind us, Yahoo! will continue to drive technology innovation in the search experience to bring more value to users and advertisers alike," says Yahoo SVP of Search Products, Shashi Seth. "We are focused on creating rich, immersive experiences that foster serendipitous discovery for people across the Yahoo! network.  As we shared last week, we are also working hard on finalizing our revenue model for the Yahoo! Search BOSS program going forward, and will be offering other search-related tools for publishers in the months to come."

"We continue to work hard on the migration to adCenter, and are optimistic about completing this phase later this fall," says Microsoft’s SVP of Online Services, Satya Nadella. "As we have said all along, our primary goal is to provide advertisers with a quality transition experience in 2010, while being mindful of the holiday season."

Both companies have indicated that the transition has gone smoothly, with Yahoo praising the speed at which the teams were able to get it done.

So, what are your thoughts on Yahoo’s new search results? If you were a Yahoo user before, now you’re choosing between Yahoo’s and Bing’s user interface.