Can someone tell me how I can make sure that the same Adsense ad is not displayed multiple times on one page. I consistently keep seeing all three AdSense ad spots with the same ad. The ad sizes are different for all three ads spots but I keep getting ads by the same advertiser appearing simultaneously. I would much prefer to have three ads from three different advertisers since that would mean a higher CPM. Thanks.
You might not have enough keywords for google to read to figure out if a different ad should show. I have an ad channel on my site that I only allow image ads on and I consistently only see the same 5-6 ads on it, there might not be enough ads to fill that spot. Also, just because you're seeing it doesn't mean everyone else does. Google tracks your web habits and also targets the ads based on your web history so the ads you see would be different than the ads others see, although the ads are still pertinent to the content.
There are plenty of keywords on the site and I'm pretty sure that there are enough ads since many other ads do consistently appear on the site. I'm just trying to figure out if there is a way to prevent three ads from the same site from appearing all at once. I will try to contact Google and see what they say.