Yahoo search users may soon start seeing results served by Bing. According to Yahoo's Vice President Search Product Operations Kartik Ramakrishnan, the company has “started testing organic (also referred to as algorithmic) and paid search listings from Microsoft for up to 25 percent of Yahoo! Search traffic in the U.S.”
As Yahoo demonstrates in the above screenshot, that means that users that are part of the test will see results from Bing inside Yahoo’s familiar interface. In spite of the impending changes, Yahoo has continued to add features and make design changes, and the company indicates that it will continue to do so post-integration.
With testing now underway, it would seem then that Yahoo and Microsoft’s plans for integration following their massive search and advertising partnership – signed back in July 2009 – are on track. When regulators approved the deal back in February, Microsoft and Yahoo indicated that they planned to have search and advertising integration completed by the end of 2010.