Well, I've finally started something I've been thinking about for a while. There's a lot I still intend to do with this, but it's a start, which will hopefully encourage me to do more.
I now have the beginnings of a guide to the Canon EOS 30D digital SLR.
There's a whole lot more to add to that guide (photos of menus and such, much more detailed analyses of existing concepts, other controls, and general prettification), and many other guides (other cameras, as I get them, and various peripherals and such) to write.
Hopefully, this will become a useful store of knowledge for folks wanting to find information about their equipment.
Eventually, I may even supplement things with short videos. (Gotta get some decent video capability first, though -- and of course more disk space to store it all!)