Systems and method for managing a plurality of content items designated for placement in a particular position on a rendered page are provided. Methods in accordance with the present invention include receiving a plurality of content items, determining an initial placement allocation frequency for each content item, collecting performance data for one or more of the content items, and determining at least one additional allocation frequency in accordance with the performance data collected. Methods of the present invention may further include randomly allocating placement of each of the content items in the particular position on the page in accordance with one of the respective initial and/or additional allocation frequency for each content item. Additionally, the present invention provides systems and methods for automatically managing a plurality of content items to be displayed in a particular position on a rendered page such that value to the content provider may be maximized.