At least one our readers has a Nook...so I did a little searching for deals on e-books for Nook. Looks like Barnes and Noble is basically the place to buy the E-books and they have Water for Elephants for $6.39, but I did find a neat little site that you can request to "borrow" e-books on loan from other users! Fun!
Unfortunately no one has this particular book out for loan yet, but hang tight, I bet they do soon.
Here is the link to the site I was talking about Lendink