Google AdSense had recently updated their plan policies, while most of them were simple to clarify and make changes to the policies. They also made a major change to publishers who use ad networks or in-house ads with ad units, which resemble AdSense ad units, or those who do ad rotation with AdSense and another network for ad such as Yahoo Publisher Network.

The most important change was made to the Competitive Ads & Services section of the program policies. Now, running anything in an ad unit which resembles the AdSense ad unit appearing anywhere on the same site is against the terms.

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