GoboLinux is an alternative Linux distribution which redefines the entire filesystem hierarchy.
OpenGEU, previously known as Geubuntu, is a complete and fully functional operative system based on the popular Linux Distribution Ubuntu. OpenGEU, a project started and designed by the Italian artist Luca D.M. (aka TheDarkMaster), is perfect for any Desktop, Laptop PC or even for a Virtual Machine. OpenGEU mixes the power and simplicity of Ubuntu and parts of the Gnome Desktop with the wonder and astonishing eye-candy of Enlightenment DR17.
-= LinuxMint 9 LXde i386 Virtual Appliance =-
Pre-Installed LinuxMint LXde i386 in VirtualBox. VBoxGuestAdditions installed and working great.

Available via SugarSync. Free Download no torrrent required.
https://www.sugarsync.com/share/csmd27xyrtp2p
-= PCLinuxOS Phoenix XFCE 2010.07 Virtual Appliance =-
NOTICE: Required non default settings in VirtualBox in order to get the networking functioning during testing on second host. See "Build Notes" below.
2010.07 Release Notes:
Highlights of the 2010.07 release: Linux kernel 2.6.33.5, KDE Software Compilation 4.4.5, GNOME 2.30.2 and updated LXDE desktop. PCLinuxOS includes all of the latest popular applications such as Mozilla Firefox 3.6.6, Mozilla Thunderbird 3.0.5, Dropbox, Pidgin 2.7.1, KTorrent 4.0.1, GIMP 2.6.9, Digikam 1.3.0 and Amarok 2.3.1.
-= PeppermintOS Ice Virtual Appliance =-
This is the PeppermintOS Ice Virtual Appliance. VBoxGuestAdditions have been installed and are working well
About PeppermintOS Ice:
-= openSUSE 11.3 i686 Gnome Desktop Virtual Appliance =-
VBoxGuest Additions installed and functioning well.
About openSUSE 11.13:
Zenwalk Gnome 6.4 Virtual Appliance
Zenwalk is a great distribution and works good in virtual box. This virtual appliance does not have the GuestAdditions installed.
-= Peppermint OS One Linux Virtual Appliance =-
PeppermintOS One is awesome in VirtualBox. PeppermintOS is small, lightweight and fast and has builtin Cloud based computing applications.
PeppermintOS WebSite: http://peppermintos.com/
Default Cloud Applications:
-= Fedora 13 x86-64 Virtual Appliance =-
Pre-installed Fedora 13 x86_64 Virtual Appliance. The VBoxGuestAdditions are will not installed.
If your require Fedora with the VBoxClientAdditions consider the i686 Virtual Appliance found at this link:
http://virtualboximages.com/Fedora+13+VirtualBox+Virtual+Appliance