As Sherlock Holmes once said to Dr. Watson, " You see but you don't observe."
Like Watson and unlike Sherlock Holmes your readers see your page but do not observe all the material on your page. 86% of people observed in the study were unable to recall advertising links even moments after they had seen a website.
What is most concerning for us who rely on advertising revenue for income is that many of those who took part in the study did not even see advertising which was directly aimed at them.
If you expand the findings this means only 14 out of 100 visitors to your site will even notice your advertisements and of these only 3 out of 100 visitors might see an advertisement and think it is relevant to their needs and possibly click through.
Infolinks are continuing the study throughout this year.
You can read a more detailed account of the report at adotas Internet Marketing News