Virtualization for Dummies

In my job I have to read a lot of Vendor biased documentation, and occaisionally I run across a document that is actually useful for more than just understanding a certain vendors offering and can be applied across the board.

This article on virtualization, actually describes it pretty well and discusses why it is important. Keep in mind it does have a slant toward AMD processors and SUN, but nevertheless a good read of how different types of virtualization works specifically around x86 hardware. This document is mainly geared toward the SMB market and does not address the high end hardware virtualization methods of IBM, HP or even SUN. It is written by the authors of the "For Dummies" series of books so it is fairly easy to read, even if some of the content will make your head swim.