IBM ThinkPad Literature (including a link to the Personal Systems Reference)

Intel's notes on Linux support for the 830MG chipset

Linux Modem Chipset Status (in case you decide to take yours apart and see what kind of chip is really in there...)

A utility said to make the volume buttons work

Stephan Furhmann's Linux on the IBM ThinkPad R31.

Tim Sutton on Building a Linux kernel for the IBM Thinkpad R31

Matto Fransen and GNU/Linux on an IBM Thinkpad R31