Abstract: A method and system for aggregating and delivering data of competing enterprises via the Internet. Data items are created or entered at a variety of participating client systems. The data from the participating client systems are then received by the server system and aggregated to form a single data collection. The server then sends to each client system HTML data that contains a portion of the aggregated data as well as a search and selection functions that allows searching and selecting across the aggregated data. Each client system receives the HTML data and displays the data to users of their own web site. The HTML data is either shown as a separate frame forming a part of the client system's web site, or is otherwise integrated into an HTML page created by the client system. It is possible to remove information in the aggregated data so as to limit the end users ability to use the data without assistance from the participating clients.