Sadly, I think that the recent infrequency of my posts here is partly because I've been spending all of my time reading this book:
admin.com/Pages/LAH.html
Compared to this book, all other Linux books (that I have ever seen) are crap. They're not fooling around when they say, "Although there are lots of introductory Linux books on the market, we find that most of them are pretty ... well, bad."
(El Edwards has some low rates there. I know there are possibilities, I just can't think of any right now.)