Tolkien Available on the Amazon Kindle
So, despite the fact that the Kindle is still in its infant stages, I think it bears reporting that Amazon has put up quite a few Tolkien-authored works on their Kindle store.
I've not used a Kindle, so I can't say how the reading experience might... but I think I might be one of those readers who'll never feel all that comfortable with a digital version of book. I just enjoy the tactile experience of a real book.
Click here to check out what Tolkien works Amazon's selling on the Kindle.