Providing a web site portal featuring consumer information in the field of medical devices, provision of information and advice to consumers regarding the selection of products and items to be purchased, product demonstrations and consumer surveys; providing consumer information services in the field of medical devices, namely, providing a web site portal featuring medical products data for the purpose of assisting prospective consumers in making selection decisions; providing on-line facilities featuring transaction order entry, order directing and order confirmation services to customers in the field of medical devices; electronic commerce services, namely, providing information about products via telecommunication networks for advertising and sales purposes; providing an on-line computer database in the field of locating products, describing products, rating products, pricing products and comparing prices of products; and integrated tracking and management of commercial transactions on a global computer network