playcat

I want to model my site behavior, finding out what would be a best way to show certain ads. Now, there is a lot of ways to show them: I could, for example, always show the ads I earn the most from, but that doesn't make sense because if user doesn't click once on an ad, he might not click again . On the other way, if I go and show them ordered by price, I might earn "some" cash, right? There are lot of ways to do so. Hence my modelling need. Can I model user behavior using database with user clicks? Should I use that db to create some sort of distribution for modeling users? I don't have much experience in modelling, only one semester at my uni. Thanks in advance