I'm an experienced Linux user, I've run it as my primary OS for about 6 years and feel confident about configuring most aspects of the OS.
I can nearly always do what I want with X, I can fumble my way around xorg.conf files and get the correct drivers and resolutions. But I never feel like I understand it, I'm constantly confused by the various terminology and versions (xorg, X11, X, DRI, ...) and unless I use a heavy desktop manager like Gnome/KDE I'm always having trouble with font types and sizes.
I tried to use the Xorg Wiki to improve my knowledge but found it hard to navigate, aimed at developers rather than users, and felt it assumed a higher amount of understanding then I have.
So if you've made it this far :) My question is are there any good advanced user guides on X? Preferably explaining the architecture, configuration files, font settings, etc.
I'm also interested if other Linux Superusers are confused about X?