The solution of the ad delivery platform described herein provides for the marketing and monetizing of media assets via the delivery of advertisement with on-demand video. The ad platform optimizes the delivery of ads by controlling the insertion frequency and format of the ad delivered with video streams. The ad platform provides flexible and configurable ad insertion rules to specify the insertion frequency and format for the composition of ads during playback of on-demand video media. The ad insertion rules may be based on a user profile, user behavior history, topic of the stream to be delivered, duration of the video or ad, and/or the popularity rating of the video or ad. The ad platform includes a reporting tool and usage reports to measure the effectiveness of the ad insertion rules in delivering ads to market and monetize the video media. The ad platform also includes an ad inventory management and forecasting tool for determining the available inventory of ad placement based on data collected over a period of time regarding the delivery of ads and the ad insertion rules to be used for the delivery of a desired ad. With these tools, a more effective ad campaign can be created based on the target information and optimization via the ad insertion rules.