"Cellular Phreaks and Code Dudes", by John Markoff. Appeared in Wired 1.1, 1993. Just more media distortion.
Cellular Telephone Phreaking Phile Series, by The Mad Phone-Man
Stargate Cellular Hackers' Journal, November 1994 issue
Cellular Secrets, by BootLeg, 1992. Cellular Tutorial.
Hacking Cellular Phones, by The DNABOX. Cellular Tutorial
Ultimate Cellular Modification Manual, by Dr. Bloodmoney, June 1992
Ultimate Cellular Phone Phreaking Manual, by The Raven of HTH. Volume 1 of 2.
A to Z of Cellular Programming - an outdated guide to NAM programming for many phones. All this info has been integrated into the RadioPhone pages.
System ID listing - outdated SID list
How to connect any cellular phone to a modem, by Phantasm. An acoustic-coupler hack. Does this actually work?