BIDDED MARKETPLACE FOR APPLICATIONS

Methods and systems for presenting application modules on a graphical display page are provided. In accordance with one embodiment, content to be displayed on a graphical display page is determined. Then, content features which describe the content that is to be displayed on the graphical display page, and user features which describe characteristics of users are determined. For each application in the plurality of application modules, the probability that specific users will select the application module when displayed on the graphical display page with the determined content is determined based on the content features and the user features. For each application module in the plurality of application modules, an overall score is determined based on the determined probability that the user will select the application module and a commercial value to be paid by a publisher of the application module when it is selected. The recommended application modules are determined to be those application modules in the plurality of application modules which have the highest overall score and which satisfy a set of constraints. Representations of the recommended application modules are displayed on the graphical display page.