Abstract: Among other things, a computer-implemented method for presenting an ad. The method includes receiving from an advertiser a predetermined level of online interest in a specified topic. The method further includes determining whether a current level of online interest meets or exceeds the predetermined level, and selectively presenting the ad based on the determination.

Abstract: A simultaneous ascending price auction (“SAA”) can be used to allocate advertising inventory to bidders. The advertising inventory can be, for example, radio or television advertisement spots (“spots”). The bidders can be advertisers that can provide advertisements for presentation in the spots. Two or more contiguous spots can define an advertising block. Spots or advertising blocks can be allocated to advertisers by the SAA mechanism based on bid criteria. The SAA can perform simultaneous advertisement scheduling and pricing. The auction allocation can be optimized to facilitate efficient allocation of advertisements to spots or blocks.

Abstract: External-signal influence on content item performance is determined. Content item performance data is received that reflects historic performance of a content item for multiple presentations of the content item. Signal data is received that corresponds to at least one signal that is temporally correlated with the content item performance data and that is external to each user, publisher and content provider involved in any of the presentations. Using the content item performance data and the signal data, an influence value for the signal with regard to the content item is determined. A content item prediction model is modified based on the influence value.

Abstract: A simultaneous ascending price auction (“SAA”) can be used to allocate advertising inventory to bidders. The advertising inventory can be, for example, radio or television advertisement spots (“spots”). The bidders can be advertisers that can provide advertisements for presentation in the spots. Two or more contiguous spots can define an advertising block. Spots or advertising blocks can be allocated to advertisers by the SAA mechanism based on bid criteria. The SAA can perform simultaneous advertisement scheduling and pricing. The auction allocation can be optimized to facilitate efficient allocation of advertisements to spots or blocks.

Abstract: Among other things, a computer-implemented method for presenting an ad. The method includes receiving from an advertiser a predetermined level of online interest in a specified topic. The method further includes determining whether a current level of online interest meets or exceeds the predetermined level, and selectively presenting the ad based on the determination.

Abstract: A computer-implemented method including receiving advertising campaign characteristics with a minimum frequency target for an advertising campaign; selecting, based on the received advertising campaign characteristics, a station having one or more advertising spots available; determining, based on the one or more advertising spots, whether the minimum frequency target is attainable for the selected station; and making an offer to the selected station, in response to the determination, to obtain advertising for the advertising campaign.