If you are not an IPS monitor owner, do some simple search in Goggle. E.g.:
http://www.google.com/search?q=antivirus, but do it standing at least about 10 inches above the screen (yes, just stand up!) And look at the SEPR.
Do all the links there look organic? Personally to me - yes, they do. But if you sit into a chair and look straight, you'll see that the 3 top links are paid ads.
Who do they choose such a strange background color? A designer's mistake?