9 Computer software for accessing information directories that may be downloaded from the global computer network; computer software for application and data base integration; computer communications software to allow customers to access information on firms and to do transactions with said firms; computer e-commerce software to allow users to perform electronic business transactions via a global computer network; computer software for organizing, accessing and diffusing data bases concerning the specific domain of activity of user, computer software for accessing data bases of a firm via Internet and Intranet; magnetic coded card readers; blank and prerecorded magnetic data carriers; blank and prerecorded magnetic computer tapes; magnetic coded cards; magnetic tape drives; computer data server for consulting one or several databases; computer programs, computer hardware, computer interface boards, interface software, memory card, memory chip, computer monitors, computer operating programs, computer operating systems, and computer peripherals