Target Audience
This document is written at a technical level appropriate for "power users" - people who like to tinker with their computer configurations to get the most out of their experience. Novice computer users who are uncomfortable tweaking settings, editing configuration files, and occasionally using the command line probably will struggle with much of the material regardless of OS, unfortunately (though at least one person has offered to help elaborate the more technically involved sections to help novices along - we'll see how that pans out).
I try to be as operating system agnostic as possible, providing information for Windows, Mac OS, and Linux, but due to the open and readily customizable nature of the system, the Linux material probably will be the most well developed.
As far as demographics, I expect this document to be useful to a wide variety of people from several walks of life. In particular, some of the major categories are: