If you're doing Amazon Web Services development, here's 43 (and counting) free Kindle ebooks for you (from the Amazon Web Services team)
"AWS documentation is now available on the Kindle - if this is all you need to know, start here and you'll have access to the new documents in seconds.
You can highlight, annotate, and search the content as desired.
We've uploaded 43 documents so far; others will follow shortly." [GD: Post Leached in Fill]
Seems so logical in hindsight doesn't it? Having these, in this format? These look like some must have resources for anyone thinking about, getting started with, or doing AWS development...