The Relayer Group (Scottsdale AZ, (602) 585-3067) sells its AI Trends Newsletter for $295/year, and has been in business since 1984. They also have an AI Directory for $50 and an AI Sourcebook for $500. (All three can be had for $650.)

Larry Press (lpress@isi.edu) mentions some good newsletters at the end of his 2/91 CACM column, and has told me a bit more about them via e-mail. He particularly likes Esther Dyson's Release 1.0, which bridges the gap between the research community and business. Over the last few years she has gotten into expert systems, NLP, groupware, self-organizing systems, e-mail, wide- area information servers, free-text bases, object-oriented programming, grammar checkers, etc., and she often gets to describe interesting products before they come out. Intelligent and well-informed. You can read some of her remarks to the business community in each issue of Forbes. EDventure Holdings, Inc., 375 Park Avenue, New York, NY 10152; (212) 758-3434.

American Programmer is Ed Yourdon's newsletter on software engineering and management (CASE tools, formal methods, software testing, UIMS, etc.). Ed travels extensively and reports cultural notes and analysis with humor. American Programmer, 161 West 86th Street, New York, NY 10024-3411; (212) 769-9460; eyourdon on MCI, or 71250,2322@compuserve.com.

Some others that Larry recommends: Mike Slater's Microprocessor Report, which covers digital hardware, computer architecture, and semiconductor industry analysis. Jeffrey Tarter's Soft newsletter on the business of software -- up on the business trends, and from time to time he "scoops" a new product. Tone Bove and Cheryl Rhoades' newsletter on the multimedia industry. Byte Magazine's weekly newsletter, which leads Infoworld with some interesting analysis from time to time. And for reports on international software development, contact the Computer Software and Services Industry Association (ADAPSO), 1300 North 17th Street, Suite 300, Arlington, VA 22209; (703) 522-5055.

Two others I've seen mentioned are Stewart Alsop's P.C. Letter and David Bowen's Software Success. P.C. Letter is a biweekly that tracks advantages of developing for different computer systems. $345 for members of the Software Entrepreneur's Forum (SEF), $495 otherwise; (415) 592-8880. Software Success is a $197 monthly for developers and software CEOs; (408) 446-2504.

Cobb Group (Louisville, KY) has announced five niche "journals" for software developers. Four are 16-page monthlies (Inside Word, QuickBasic, Inside HyperCard, and DOS Authority) for $59-$99. Turbo C++ is bimonthly for $79. Call (800) 223-8720 for a sample copy. [SJ Mercury, 6/16.]