Chat rooms and bulletin board services concerning web casting and video broadcasting conferences and exhibitions, operating a portal on the global computer network; providing discussion forums, email services, and chat services, in text and multimedia via computer networks; electronic transmission of data, text, sound, images, and documents via computers and computer networks; broadcasting services; computer bulletin and message boards; providing online facilities for realtime and time delayed interaction with other computer users concerning various topics; directory services to help locate people, places, organizations, phone numbers, email addresses, and home pages; conducting online conferences, seminars, and meetings via computer networks; webcasting; video broadcasting services; providing video broadcasting over a global computer network, over internal computer networks, and/or local and wide are networks; delivery of advertisements, data or messages by electronic transmission; audio, video or multimedia broadcasting,