Local-repo is a handy utility for Linux distributions that use the .deb package format, such as Debian GNU/Linux and Ubuntu. It allows you to keep a local APT repository on your hard drive.
BOSS Live Installer is a GUI live CD installer for Debian GNU/Linux and its derivatives. It currently supports Debian 5 Lenny, and a version for Debian 6 Squeeze is in development.
Tetris on the console.
A universe over IP.