A new mathematical procedure, or algorithm, picks out those members within a larger network—for instance, related sites on the World Wide Web—that have especially close ties. (p. 190)

Using an efficient infection strategy, a malicious programmer could deploy a rogue computer program far more voracious than the Code Red worm that struck on July 19. (p. 127)

Check out an amazing, new information-dispensing device at the Web site of technology critic Langdon Winner of the Rensselaer Polytechnic Institute. Winner's Automatic Professor Machine delivers online doctoral degrees without the student ever having to set foot on a college campus. A spoof of the distance-learning craze, the site features a news report, radio interview transcript, recorded lecture, view of Glow-Ball University, and more.Go to: http://www.rpi.edu/~winner/apm1.html

Interested in computer history? Alex S. Pang of the Stanford University Library has assembled fascinating material from a variety of sources, including papers donated to the university from Apple's corporate library, to portray the invention and emergence of the Macintosh personal computer. The evolving Web site includes sections on counterculture and computing, the early Macintosh, the Apple mouse, technical documentation, marketing the Macintosh, and user groups.Go to: http://www-sul.stanford.edu/mac/