I have a direct advertiser that would like to buy more coverage on my site - a sitewide run. This advertiser's ad will end up on pages that are also have a single 336x280 Adsense unit on it as well.
This advertiser also has ads that appear on my site via Adsense - both text ads, as well as the display ad that they're using in the direct placement.
My question is whether this would be a violation of Google's TOS?
I've seen this topic touched on in older threads - and I understand that it is OK to run other ad networks, third party ads, etc - as long as these other ads aren't formatted similarly to or look like Google's ads, but what about the case where Adsense is serving the same ad creative (image/display ad) that is being served by the direct placement?
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