A method and system for conducting multiple Internet-based conventions, events, conferences, trade shows and meetings (“conventions”) includes a plurality of meeting planner clients, exhibitor/sponsor clients and attendee clients, all using web browser computers and a central website server on the Internet. The system receives and stores initial convention data, and control parameter rules from meeting planner clients. Then the system receives and stores exhibit booth display data and control parameter rules for said convention from exhibitor/sponsor clients. Based on search criteria provided by the participating attendee client, the central website server releases stored database convention information and provides a wide array of convention activity simulated with the program instructions and the databases. Thus, the system allows the creation of a “virtual convention venue” for conventions that exist only on the central website server and available using the Internet. Additionally, the system supports and augments a convention being held in a physical or venue-based center (e.g., Moscone Center in San Francisco).