Providing access to others to a computer database for buyers and sellers of parts for fluid meters, automatic shut off nozzles and fuel dispensers and their parts for service stations, filters for use in fuel dispensing pumps for service stations, consoles and point of sale devices for control of fuel dispensers, and providing access to others to computer hardware and software for controlling and monitoring one or more of convenience store operations, retail fuel dispensing systems, payment authorization functions and terminals, electronic cash registers, underground fuel storage containers, dispensers, car wash machinery, video security systems, lotter terminals, money order networks, QSR (Quick machinery, video security systems, lotter terminals, money order networks, QSR (Quick Service Restaurant) functions, and electronic safes