This week's issue of TidBITS, a free online Mac-focused newsletter published by Adam and Tonya Engst continuously since 1990, exemplifies why I've been a subscriber for so long (I can't even remember when I first signed up). Two articles were particularly impressive: Matt Neuburg's Spotlight Strikes Back and Glenn Fleishman's Google's View of Our Cell Phone Future.
TidBITS regularly takes its coverage of tech topics several steps deeper than most other media, online or offline, even when its articles are short. I don't think you could find a better explanation of the vastly improved Spotlight search feature in Apple's latest "Leopard" operating system release than Matt's. I learned not only what's better about Spotlight in Leopard (nearly everything), but also some of its engineering quirks and powerful search syntax. Much better than anything Apple offers.
Glenn's article about Google's new "Android" mobile phone platform announcement is a masterpiece. He summarizes the international history and technical infrastructure of the entire cellular phone industry; Google's motivations and activities so far—and those of its partners in the consortium—in introducing Android; and how it compares to, and might affect products and strategies from, competitors such as Nokia/Symbian, Microsoft, and Apple. All in fewer than 3000 words. I worked for a wireless telecommunications company several years ago, and I still learned lots of new things.
Yes, I've written for TidBITS in the past, but that just puts me in honoured company. Articles like Matt's and Glenn's are some of the best general-audience technical writing on the Web.