A system, method, and computer program for creating a database and registering, tracking, and communicating with potential real estate buyers who visit an open house showing or are interested in a particular listing. The computer program executes on a laptop computer in a user friendly configuration at the open house where potential buyers, upon arrival, register by entering their information into the database via a software interface controlled by the program. Various administrative tools are available to the host real estate agent to follow-up, track and communicate with the potential buyer and/or his realtor. The potential buyer' s real estate preferences are stored in the database so as to facilitate alerts and communications by the agent to the buyer regarding the status of the open house listing or other listings. The program also promotes periodic communication by the host agent with buyers over the years so as to generate future listings.