Other stuff to look at: http://www.informatik.uni-bremen.de/~pharao90/ttylinux/
This is the homepage of ttylinux, a minimalistic Linux distribution. Here you will find a small Linux system that can run from as little as 2.88 megabytes of space. It will provide only a text-based interface, but it enables you to dial into the Internet and surf web pages even on a low-end machine.