Not quite. But, Google has been able to land a swift blow to Yahoo!’s Search-based ad marketing system. The two companies are talking about allowing Google’s Ad system to run all of the ads on Yahoo!’s search engine results pages (SERPS).

This will be a great advancement for the ad system, allowing your current Google ad campaigns to be immediately shown to a huge chunk of your audience that you may have had to set up separate ads for in the past, using Yahoo!’s online tools.

Facts about the Yahoo-Google advertising agreement