Dedoimedo posted a Xen tutorial
Zen, spelled with Z, is the quintessential feeling at the crown of your head while peeing in snow after holding for eight hours. Xen, spelled with X, is an open-source virtualization technology that you may consider for your setup, whether at home or business, although, like KVM, it is more oriented at the corporate market.Getting started with Xen virtualization
We've had several tutorials on KVM, covering the introduction article, how to setup and configure your storage and network, including bridged networking, and how to resolve conflicts with VirtualBox. Now, it's time to learn a little more about Xen. Similarly, I'm going to show you the first steps needed to get your virtual machines installed and running, the subtle terminology, the use of GUI and command-line management tools, virtualization modes, various appliances, and more.