http://www.useit.com/alertbox/banner-blindness.html

http://radar.oreilly.com/archives/2007/08/the_ethics_of_w.html

Jacob Nielsen releases his study regarding EyeTracking and Deceptive Advertising tactics.

Unethical tactics DO work according to Eyetracker – and ads are basically ignored.

This may have been the reason that Google got rid of the Adword Boxes a few years ago – and also changed their Sponsor Links background colors from the common pastel blue to a beige like warm color.