[ Thanks to Rob Zwetsloot for this link. ]
If you want to set up a Linux virtualization server,
Proxmox Virtual Environment (VE) is an easy-to-use turnkey
solution. Under the hood, Proxmox VE is a heavily tweaked Debian
6.0 (Squeeze) x86_64 distribution that installs a web-based
management interface, and has a custom 2.6.32 kernel optimized for
a virtualization environment.