Linux in a Nutshell (O'Reilly book)

[Stephen P Rufle]

I would like to say O'Reilly also has http://my.safaribooksonline.com/
and I have found that to be useful. I got a full subscription, so I
could search and review on a monitor. I also sent them an email to
encourage them to get other publishers on their site that already
provide PDF versions of books.

In the end authors need to eat and humans seem to like the feel of
something in their hand. People (content producers) do not yet truly
believe they will make money from selling bits.