TINY is a small Linux distribution designed especially for reusing old computers. It has very low demands in terms of hardware capacity, and even a Linux beginner can install it easily. No CD driver is required for installation, even for standalone machines. TINY is GUI capable . As long as your machine can bear it, you can run all available Linux applications on it.
Coyote Linux is a mini distribution designed for setting up network utility services such as Internet connection sharing, firewalling, or wireless access points. The goal is to make it as quick and easy as possible to set up a Linux system with only a minimal amount of Linux knowledge.
ROCK Linux is a distribution build kit for creating Linux distributions. You can easily design and build your own distribution by choosing packages, compilers, and optimization options, and optionally enable the GCC Stack-Smashing Protector for enhanced security. It is also possible to choose custom configure options, cross-compile, and much more. Many specialized targets (customized distributions) have already been created, such as a Desktop, Router, or Minimal distribution. A variety of architectures are supported.
Pocket Linux is an almost minimal, one floppy linux system designed to quickly convert PC workstation into secure linux-based workstation using ssh to connect to remote host (other networking clients are also supported). It supports bootp for determining host IP and other network parameters (there's also manual configuration possible, but bootp is recommended). In addition to workstations equipped with a network card (ethernet or arcnet), you can also use Pocket Linux on a PC equipped with a modem. Modem is automatically detected and then PPP connection is made.
A self-contained package which allows use of a diskless, low-memory Sun SPARCstation (4c or 4m architecture) as an Xterminal client. The server can be almost any other system which has tftpboot capability. This package is 100% Linux. There are no Sun binaries or libraries included or needed. If you have a system with no disk, or perhaps an IPC which suffers from the dreaded "slowdown" bug, this is the package for you.