We’ve been anticipating the complete Yahoo/Bing/Binghoo transition for months now and today we got word that it’s finally official.

Yahoo has completed the process of moving search ad serving for Yahoo! to the Microsoft Advertising adCenter platform in the U.S. and Canada. With this milestone achieved, the transition of Yahoo! Search Marketing accounts to adCenter is also complete. Now advertisers have access to 163 million unique searchers and 33.8% of U.S. search queries on Yahoo! Search, Bing and partner sites, with the convenience of one account.

Here are some important points to remember:

  • Going forward, adCenter accounts are the only ones that need to be managed in order to advertise on Yahoo! Search and Bing.
  • Beginning Thursday, October 28, Yahoo! Search Marketing accounts will change to a read-only state. It will be accessible for the next five months, so that we may view your historical data from the past 13 months. Click charges will no longer accrue and no further action is required to close accounts.
  • adCenter account support is now managed exclusively by Yahoo!