Here's a cool Google experiment found via Search Engine Roundtable. You know the ads that appear on top of the search results for competitive queries? Well, Google decided that they should remove them if users don't click on the ads.
So here's what you should do to move those ads in the right column: search for something that triggers the blue ads (for example loan) and refresh the page until they disappear. That's it.
"The rationale is that the user does not want to see the ads anyway and it lessens the chance of a poor prospect clicking on an ad. If you clear your cookies, the results will go back to normal."