Why You Should Never Display All Ad Units Google Allows On One Page

Google allows up to three AdSense ad units (plus one adlink and one Google search box) on a website at any one time. In most cases, it is best to run the maximum three - the more ads you show, the higher the chance it will catch a reader's eye. However, there are times when having less ads could make you more money. This is caused by something known as the Google Bid Gap.

What Is The Bid Gap

The bid gap is the difference in price between the Google ads. The top spot always cost the most, with each lower position costing less and less. The gaps between the top four bids are normally very close. However, once you get pass that, the gap can widen substantially. For example, the bids on a high paying keyword might be $5.00, $4.99, $4.98 and $4.97 for the top 4 spots, and then 10 cents for the fifth spot. There is only a 1-cent gap between positions 1-4 but a $4.87 gap between positions 4-5.

So more is not always better. I don't like to go too over the top the adsense ad's on my sites. Too much advertising puts users off. Take head of the advice in this article if you want to get a better return on your adsense ad's.