CainIV - 4:02 am on Sep 17, 2011 (gmt 0)
Now that also means that Google users are being pushed away from the first set of purely organic web search, and toward the many options that Google has worked to create - and not all of those are directly ad related or even income related.
In theory a nice idea but unlikely. In fact most conversion specialists might say that because of the nature of the contextual ads Google servers, colors of the ad text, and other markers, its unlikely more people would click on the left 'expansion items'
In fact it would be great to see statistics on who does those.
I know personally I would rather click <topic of relevance> ads on the right side than