Lame_Wolf - 2:19 pm on May 13, 2010 (gmt 0)

Below the fold on an informational site can be a prime spot if the article is about the benefits of a blue widget and the ad is about a sale on blue widgets. In my experience the CTR and conversion on affiliate ads/links placed at the end of articles in this manner can be fanstastic.

Yep, totally agree.
Plus, I made my site for my visitors. I want them to read what I have to say, not visit a page and click on the advert straight away. Nor do I want them to scroll back up and click.

I have to look long and hard at my site to find any pages that have an advert above the fold.

[PS: Not affected by the recent downturn in revenue that others are mentioning].