bumpski - 12:42 pm on Jul 28, 2006 (gmt 0)

There was a time when IFrames solved this problem, but when Adsense introduced the "section" start and end directives (section targeting), they made IFrames unreliable. It is likely you will have untargeted ads if you try IFrames. (For some, IFrames still seem to work, I don't understand why.)

It's funny when IFrames did work you would get targetted ads even in the Google cache, and the performance problems were solved.

For some sites I now have the Adsense code at the end of the page and use a DIV to place the ads where I want them. This leads to an interesting appearance (corrupted) for pages in the Google cache.

Don't forget the Adsense Javascript itself must be loaded even before Google starts to produce the Ads.

I've always wondered whether a "link rel" directive might expedite loading this code?