Amazon's Kindle Direct Publishing, the fast and easy way to self-publish your books for sale in the Kindle Store:
With Kindle Direct Publishing (KDP) you can self-publish your books on the Amazon Kindle Store. It's free, fast, and easy. Books self-published through KDP can participate in the 70% royalty program and are available for purchase on Kindle devices and Kindle apps for iPad, iPhone, iPod touch, PC, Mac, Blackberry, and Android-based devices. With KDP, you can self-publish books in English, German, French, Spanish, Portuguese, and Italian and specify pricing in US Dollars, Pounds Sterling, and Euros.