Programmers are working on an IRC varient that allows for two-way video and audio over this same system, all for free. Hypertext documents contain hyperlinks or hotlinks to other documents spread out across the Internet. In this case it might take you to a definition of hypertext or a video clip of the history of its development. These new documents would, in turn, contain hyperlinks to other documents. Continuing to select hyperlinks would take you on a trip through the World Wide Web.
Hyperlinks can also be sounds, images, and even movies.
WWW browsing software takes full advantage of these multimedia documents and you can view, play, or download them easily. In the case of unmoderated lists, each e-mail message is automatically sent to the entire subscriber list as soon as it's received. Moderated lists are monitored by a person who reviews messages, determines if they're appropriate, and then forwards them to subscribers. More than 3,500 mailing lists operate around the world, and can be viewed with e-mail reading programs such as Eudora. There are over 180 chiropractors from all over the world subscribed to this list actively discussion many interesting topics affecting chiropractic today.