(Originally published on InformationWeek's Internet Evolution, November 19, 2007)
on Bayesian filtering and how it's used for spam detection, and how that same technology can be overzealous and cut off legitimate uses of things (e.g., when you use your credit card overseas and get blocked)
Doctorow, C. (2008). The Future of Internet Immune Systems. In Doctorow, C. Content: Selected Essays on Technology, Creativity, Copyright, and the Future of the Future. Tachyon Publications, pp. 152-154