Abstract: Among other things, methods, computer program products, and systems can be used to modify a previously booked broadcast media ad campaign. For example, an previously booked broadcast media ad campaign can be modified by selecting one or more parameters from among multiple parameters associated with the previously booked broadcast media ad campaign. The selected one or more parameters are modified, and the modified one or more parameters are applied to the previously booked broadcast media ad campaign while the previously booked broadcast media ad campaign is still running.

Abstract: Among other things, a computer-implemented method for customizing the distribution of advertising impressions includes generating a target number of advertising impressions for one or more advertising categories based, at least in part, on a non-uniform percentage distribution of advertising impressions for an advertising campaign, the percentage distribution corresponding to the one or more advertising categories. A determination is made on whether enough advertising inventory is available to fulfill the target number of advertising impressions. When a shortage of available inventory is detected in the one or more advertising categories, an actual number of advertising impressions for the one or more advertising categories is generated.