Panama, the new pay per click advertising platform from Yahoo! Search Marketing continues to ape Google AdWords. This time, it is with the introduction of an ad testing feature that works just like ad testing and optimisation on Google AdWords.
The system works in the exact same way as the Google AdWords ad split testing system works. Advertisers can insert multiple creatives for their keyword groups. If ad optimisation is turned off, the Yahoo! system will show both creatives more or less evenly. If optimisation is turned on, the ad with the higher clickthrough rate will start showing more and more frequently over time.
Visit the Yahoo! Search Marketing Blog for a detailed explaination on ad testing.