|Ever since the Adwords program first launched, webmasters have assumed that Google was doing this and Google always said it would defeat their long-term business and they won't do it. I know of several people over the years who have hoped to prove Google was favoring Adwords buyers in the organic part of the SERP, but no one could do it. And they were collecting a lot of data. |
I've even seen a study since Panda - and no, it didn't prove any duplicity on Google's part.