BeatrIX Linux is a 180-megabyte live CD that is also installable to hard drive. It features kernel 2.6.7, Gnome 2.8, Evolution 2.0, Firefox 1.0 with AdBlock, Open Office 1.1.2, Vim, Apt, xPDF and more. It tracks the Ubuntu package repository. It was originally built for the mini-ITX motherboards from Via, but it runs on just about any Pentium-class PC with 64 megs of RAM or more. It's a get-the-job-done distribution for people who want the basics.
Admelix is a live CD distribution based on Ubuntu Linux with tools for business administration. Its main objective is to guide managers of small and medium-size businesses towards GNU/Linux and open source software. In addition to the live CD, the project's Web site provides information about open and free tools for business administration.
Ubuntu Christian Edition is an operating system geared towards Christians. It is based on the popular Ubuntu Linux and includes the best available Christian software, such as GnomeSword, a top of the line Bible study program, and several additional modules. It also includes fully integrated Web content parental controls powered by Dansguardian and a graphical tool for adjusting the parental control filter settings. If you are looking for a KDE-based distribution, consider Ichthux.
Uzklive is the live port of Uruzuki GNU/Linux. It contains a lot of multimedia applications, games, and networking tools. You can use Synaptic as an on-the-fly software installer and, while uzklive is running, you can use temporarily installed software. It uses the GNOME desktop environment with Woki Toki's Rico sound theme. It can also be used to install the Uruzuki GNU/Linux distribution over the network.
Tin Hat is a Linux distribution derived from hardened Gentoo. It aims to provide a very secure, stable, and fast desktop environment that lives purely in RAM. Tin Hat boots from CD, or optionally USB pen drive, but it is not a LiveCD in that it does not mount any file system from the boot device. Rather, Tin Hat employs a massive squashfs image which expands into tmpfs upon booting. This makes for long boot times, but remarkable speeds during human-computer interaction.