Does Google Adwords effects ranking at all?

[sinelogixtech]

Actually, I am quite sure it does. A friend of mine and I share a blog and we just cut the adsense from it and the exact same thing happened. No change in PR, different host account, and same drop in ratings. Apparently the drop is more centered around the main keywords. Not as much around long tail. This further goes to show that adwords does play some roll in Google's search algorithm. Try it yourself.