1. An Internet-enabled automatic rental vehicle transaction system, the system comprising a web service connector in communication with a rental vehicle software program, the web service connector being configured to (1) receive, via a network, a document from a computer system of an authorized purchaser of rental vehicle services on behalf of another, the document comprising a web service rental vehicle reservation request, (2) process the received document in accordance with a web service specification document to create one or more data objects having a format supported by the rental vehicle software program, and (3) communicate the one or more data objects to the rental vehicle software program, and wherein the rental vehicle software program is configured to automatically process the one or more data objects for fulfillment of the reservation request.