Guides beginning computer users to the 30,000 newsgroups in which people worldwide engage each other on specific topics. Explains how to negotiate the Usenet area on America Online and CompuServe; provides a classified catalogue of newsgroups; and discusses such aspects as etiquette, file transfer, and creating a newsgroup. Includes a CD-ROM with CompuServe software for Mac and Window users. No bibliography. Annotation c. by Book News, Inc., Portland, Or.