A communications marketing and advertising system is described for delivering advertising content to subscribers of a telecommunications network. The system includes a marketplace component accessible by advertisers and ad space owners, which is used to create ad space for delivering content to subscribers of a telecommunications network. The marketplace allows advertisers to submit bids on the ad space and the ad space owners to approve or reject the bids. The system also includes a campaign manager that creates a campaign upon determining that the bid has been approved by the ad space owner. The campaign includes a set of messages containing ad content to be sent out to the subscribers. The subscriber profile module of the system obtains profile data associated with the subscribers of the telecommunications network and customizes the content of the messages according to the profile data. The ad engine delivers the messages to the recipients.