L anguage is the code used for creating Web sites. You don't need to know HTML to browse the Web. Underlined or highlighted words in Web documents signify a hypertext link. Think of hypertext as the footnotes of the online world. Clicking your cursor on the word takes you to related material.
Lists can be public or private, moderated or unmoderated.
You may join an ongoing mailing list or start your own. A mailing list is sometimes referred to as a Listserve or a Majordomo , depending on the kind of software used to manage the list. Anyone can post comments, using e-mail instead of thumb tacks. Teachers and discussion group leaders can use a newsgroup to generate class discussion either by having students post questions before class or continue discussions online after class. You can set up a newsgroup especially for your class, or you and your students can join an existing newsgroup.