Bing ads will start airing in the U.K. next.

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Bing Network Contextual Ads, will allow websites to run text ads (like those pictured on the top right) from the Yahoo!

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What they created was a platform where someone can go, place ads across Google, Yahoo and Bing, and then get a simple letter grade to see how well their ads are doing.

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Bing also increased the number of ads that were clicked on, reversing a yearlong trend that had benefited Google.

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