Systems, methods, and computer program products that facilitate the integration and accounting of advertising within audio Web content requested by users via telephone devices are provided. Upon receiving a request from a user for Web content via a telephone device, a Web server retrieves an advertisement from an advertisement server, inserts the retrieved advertisement within the user requested Web content, and forwards the user requested Web content and advertisement to a text-to-speech transcoder for conversion to an audio format. The text-to-speech transcoder converts the Web content and advertisement from a text-based format to an audio format and serves the Web content and advertisement in the audio format to the user client device via a telephone link established with the user client device. If an advertisement is interactive, a text-to-speech transcoder may be configured to notify an advertisement server of user interaction with the advertisement. Information such as an identification of a requesting client device, user, as well as time and date information, may be recorded by an advertisement server for use in measuring effectiveness of a particular marketing and/or advertising campaign. Information associated with providing a user with additional information associated with an advertisement may also be stored.