One of the biggest newbie mistakes I made when I started out Adsense blog farming was failing to resist the temptation of putting Adsense ad blocks all over my blog template.
The result?
More clicks. Yes.
Less money per click.
Why?
Adsense works on an AUCTION basis. The less ad spots, the higher the chance, the spot will get a higher bidder.
Higher bidder = more money for you.
Quick tip that resulted in close to 300% income boost for me per average ad spot.