I was being a guinea pig for some usability testing today and we noticed something very interesting. The site we were testing was a traditional 3 column design i.e. left hand nav, content and then call to actions on the right hand side. As a user I completely ignored the right hand column.
Now this could just be me; I am known to be awkward at times but it got me thinking. I'm wondering with some of the popular sites such as facebook and google using the right hand column for advertising, if users are sub-consciously ignoring it.
As users we don't like to think to much - our brain has become adept to looking for patterns and following conventions to save time and find the information we need as quickly as possible. Thanks to in page advertising, maybe the right hand column is becoming something we ignore as it takes up unnecessary thinking time.