However, the most important factor influencing ad effectiveness is the creative quality of the ad, according to Dynamic Logic SVP Ken Mallon, although if the creative quality is the same, then ad size is a “significant” influence, according to MediaPost.
Why do smaller ads perform better?
The Dynamic Logic researchers said the reason is that the smaller format display ads are far more integrated into the content of Web pages, and consequently are more effective at “driving online ad awareness and purchase intent.”
Also, ads’ format strongly influenced their effectiveness—rich media ads were the most effective, while simple Flash ads performed worst. (It’s those tase the gnome ads, I’m telling you.)
What do you think? Have you seen smaller ads performing better? Does placement, size or integration to the content of the page play the biggest role in ad effectiveness (after creative, of course )?