42 Computer services, namely, providing temporary use of on-line non-downloadable computer software used for search and retrieving on-line publications and articles from such publications; computer services, namely providing on-line non-downloadable computer software used for providing subscriptions to on-line publications; computer services, namely, providing search engines for obtaining data from journals and other publications on a global computer network; and providing publishers and computer users with information in the field of the availability of published periodicals