9 Computer software for maintaining and measuring on-line advertising for use in the field of interactive media; computer software which enables and facilitates the auditing, collection, reporting, and publication of data related to usage of interactive media formats for use in the field of interactive media; apparatus for the recordal, transmission, and reproduction of data, sound, and/or images, namely, computers, facsimile machines, cameras, and video recorders; blank magnetic data carriers and recording discs