We have added several packages to Scientific Linux that are not found anywhere on the Enterprise releases.

icewm
Summary : Fast and small X11 window manager
Added because we needed a lightweight modern window manager. There are some machines that just don't have much CPU and/or memory, and both KDE and GNOME can really slow these machines down.
This is not installed by default.
-- icewm
-- icewm-l10n
-- imlib - for dependancies
-- gtk+ - for dependancies
-- glib - for dependancies

openafs
Summary : OpenAFS distributed filesystem
Added because many educational and research centers around the world use AFS as some type of central file system.
This is not installed by default.
-- openafs
-- openafs-authlibs
-- openafs-client
-- openafs-compat
-- openafs-firstboot
-- openafs-kernel-source
-- openafs-kpasswd
-- openafs-krb5
-- openafs-plumbing-tools
-- openafs-server
-- kmod-openafs

revisor, livecd-tools, liveusb-creator
Summary : Sceintific Linux Spin Creation
Tools to create Scientific Linux "Spins" or "Sites"
This is not installed by default.
-- revisor
-- revisor-cli
-- revisor-gui
-- revisor-isolinux
-- revisor-rebrand
-- revisor-reuseinstaller
-- revisor-unity-scripts
-- sl-revisor-configs
-- livecd-tools
-- liveusb-creator

yum-autoupdate
Summary : Automatically update your machine daily via yum.
Added for those users who want their system automatically updated without having to worry about doing it by hand.
This is installed by default.
-- yum-autoupdate

yum repositories
Summary : Various Yum Repositories
These are not supported by Scientific Linux but are here for your convenience.

This is not installed by default.
-- adobe-release
-- atrpms-repo
-- elrepo-release
-- epel-release
-- rpmforge-release