Apparatus for recording, transmission or reproduction of sound or images; blank magnetic data carriers, recording discs; calculating machines; computers and data-processing apparatus; downloadable computer programs and computer programs recorded on media for retrieving, analyzing, and managing multimedia data from computer networks, including the Internet and on mobile terminals; games programs for computers; downloadable computer software and software recorded on data media for the scanning, displaying, processing and output of multimedia data on computer networks, including the Internet, and on mobile terminals; prerecorded magnetic data carriers featuring downloadable computer programs and computer software for retrieving, analyzing, and managing multimedia data on computer networks, including the Internet and on mobile terminals; downloadable electronic publications, namely, newsletters, books, magazines, pamphlets, and brochures in the fields of business software and related management and consultancy services; computer software to facilitate communicating online and through other shared networks and for customizing computer application user interfaces