martinibuster - 7:48 am 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.

Higher up on the page might be the best place for advertisers in general, but not always.