TechwareLabs has published an editorial about Virtualization titled "Virtual Double". Here's a clip from the editorial:
Ever wanted to try out Linux but dot have a spare computer to try it out on? Well with Microsoft Virtual PC 2007, you can create a virtual desktop environment where you can install the operating system of your choice. Whether it be a version of Linux or maybe even Windows 3.11, you can install just about anything. Matt Androski will go through a step by step guide of how properly install and configure Microsoft Virtual PC 2007.