There are lots of aspects to maximising adsense profits. This post deals only with the amount of ads you display.

Think about it, if you display 3 blocks of 4 or 5 ads, that is three times the amount of ads than one. The higher paying advertisers (for this example lets say they spend $1 on an ad) will still get shown, but more lower paying advertisers (lets say $0.30) will be shown.

Therefore the chance that a user clicks on a high paying advert is considerably less.

So you might think, ah, i’ll put just one block of adverts. Well, then you’ve got less adverts for them to click on. Its is catch 22 situation.

Our thoughts? Remove any ad blocks that never get any / only get very few clicks, for example an ad block at the very end of a page that has no content at the bottom (say for example if a menu on the side was longer than the content).