I never thought I'd find something like this, a (online) book that is both informative and utterly, utterly insane at the same time. Instead of the usual dry language that technical books tend to be written in, this book just oozes with oddness, from cartoon strips of foxes to discussions of dogs, there's something here to utterly confuse everyone as to the point of the anecdotes. That's not to say that it doesn't explain the technology at hand, it does and does so quite well, it's just strange. Go give it a shot, if you can look past the oddness it might be worth spending a little time on.

• http://poignantguide.net/ruby/