I was changing some ads around. Temporarily, while I was doing this, I added Google and Microsoft ads in their naked code without going through my OpenX ad server. The ads were flash and 300x250 video ads. Something I never saw before through my iframe tags.
Does this have any correlation from iframe and non-iframe?
Hmmm I was checking the TOS and it doesn't say anything about frames/iframes any longer. I found this from Google: "Our targeting technology is not optimized to serve ads within a separate IFRAME. If you placed the AdSense code in a separate IFRAME, your site may display less targeted ads or public service ads. For better results, please implement our ad code directly into the source of your webpage. Once you make these changes, relevant ads may not appear immediately. Until we are able to re-crawl your site, which may take up to 48 hours or more, your page may continue to display untargeted or public service ads."