Info for the virtual newbie.
If you are new to Virtualization, here's a nice animation showing the basics of Intel's virtualizations support, highlighting the technical and the business aspects.
Being a subscriber to the Intel Software&Solution News, I just received the current newsletter with below link.
Get an overview of Intel® Virtualization Technology, which can abstract, divide and share hardware resources between multiple operating system environments running simultaneously.
Wanted to be balanced, so I tried to find a similar thing on the AMD websites. I wasn't too successful but here's a nice presentation from AMD:
AMD "Pacifica" Virtualization Technology
Learn how "Pacifica" virtualization technology allows AMD to continue to offer a competitive performance roadmap while meeting the system architecture demands of our customers.