elsewhen - 6:04 pm on Jul 23, 2005 (gmt 0)

The first call to google in your page source code will pull the highest paying ads, but that doesn't mean they have to appear at the top of the page...

i get that... so the technique effectively allows you to make the 2nd or 3rd appearing ad block on a page get the top paying ads.

your suggestion is a good one if there are lots of high paying ads for a particular page and especially if you have long pages that the user has to scroll to view.

There's no need to have one ad block only.

this is the part that caught my attention... imagine you a page where all the text content appears above the fold. additional ad blocks just compete with the first one... so giving a visitor ONLY the top 4 ads, for example, in many cases is the most profitable thing to do. having low-paying ads competing on the same screen with high-paying ads is not necessarily ideal.

i think your idea is a very good one, for certain instances, but i still think there are many cases where the best results would be to have one ad block (or an ad block and a link unit) on a page.