Here are some links to various editions at Amazon.com. I get a cut if you buy through this link. I promise to spend the money on something entirely inappropriate.
- Digiread edition (≅ $6.95)
- Filiquarian edition (≅ $6.99)
- Penguin edition (≅ $9.60) (I'll have one extra copy of this one available next week.)
- Vintage edition (≅ $10.36)
Here are some links to free versions on the internet.
- Helen Zimmern translation at Project Gutenberg (text file)
- A few html versions of the Project Gutenberg files.
- LibriVox audiobook
- Ian Johnston translation
Go forth and read.
Edited to add: So other folks can post items regarding Harmful Books, I created harmful_books at burgunder's suggestion. Join up over there.