Business services, namely, offering computer networking electronic commerce functions via a global computer network for management of conventions, seminars, trade shows, educational classroom lectures and the like (collectively seminars) for delivering in real-time or on a delayed but repeated basis, audio and video data streams of seminar events to remotely located attendees of the seminars; for merchandising publications, event tickets, apparel and subscriptions related to such seminars; for developing databases to provide management reports to seminar organizers; for disseminating seminar information to potential attendees; and for providing on-line registration and payment all for upcoming third party seminars