1. A computer-implemented method comprising: identifying, with a computer system, one or more news preferences for a first user; selecting a plurality of news stories, wherein particular ones of the new stories are determined to be responsive to the news preferences for the first user and comprise audio versions of stories converted automatically from textual news stories; assembling, with the computer system and for the first user, an audio news report that includes the audio versions of the selected news stories; selecting one or more items of promotional information, the items of promotional information being in an audio format and that are selected to correspond to topics of the selected news stories, to preferences of the first user, or both; and delivering, to a computing device, the assembled audio news report, wherein the assembled audio news report further includes the selected items of promotional information, wherein selecting the one or more items of promotional information comprises: generating search results for a search query that includes text that is determined to correspond to one or more titles of the selected news stories; identifying one or more items of promotional information from the results of executing the search query and previously provided bidding information provided by an advertiser; and in response, using the one or more identified items of promotional information as the selected items of promotional information.