Before explaining this I would like to explain how do advertisers like Google Adsense pays to you for showing ads on your blogs or web pages. Generally they have a pay rate based on per thousand views and when some one clicks the advertisement displayed on your site or if a sale happens through these advertisements. Now having said this let’s understand that what the best way to keep your visitors view ads more and differently.
Let’s take an example you have a blog containing fifty articles on five pages means you have ten articles per page so if some one visits your site and access all 50 articles the number of times your ads will be viewed is 5. On the other hand if you reduce the number of article on a single page to 2 then similar instance will give your articles 25 views. Ideally keeping two articles per page is a good option which also keeps changing your ads every time the next page is viewed. In order to keep lesser number of articles add quality content and keep the length of your article close to 400 to 500.