(FORTUNE Small Business) – Mainstream business magazines may obsess about technology, but their focus is still a lot different from that of the high-tech pubs. More often than not, they focus on business celebrities and IPOs. But the techie books still play to their own strengths, covering technology with an unmatched attention to detail.

Mobile Computing (www.mobilecomputingcom), which specializes in technology you can carry, takes a hard look at Web-based calendars and organizers in its September issue. Once upon a time, you needed special software on your PC to keep track of names, tasks, and appointments. Now you can do the same thing on Lycos, Netscape, Yahoo, and a host of other sites. The magazine spotlights two for kudos: When.com, recently purchased by AOL, which provides thousands of public-events listings (from movies to concerts) that you can incorporate into your calendar; and Microsoft's Jump, recently merged into Hotmail, which is an online calendar that gives you the ability to send e-mail invitations to an event in your calendar.

PC Magazine (www.zdnet.com/pcmag), which made its reputation fretting about the pace of printers and speed of microprocessors, has aged wisely with the Internet. The cover story in the October 5 issue, "You.com," looks at ways you can customize many Web portals to find the info you need. "Mag," as the tech-heads call it, hasn't abandoned its roots as leading arbiter of hardware and software for the "expert" user.

PC Computing (www.zdnet.com/pccomp) offers a passel of online privacy tips in its October issue. One is to use an anonymous e-mailer for private messages. Another hint is to use a site such as www.anonymizer.com to stop marketers from bombarding you with junk mail.

--JOEL DREYFUSS