There are converters available from Amazon and/or Mobi for pdf and doc files.
How do you load other eBooks onto the Kindle? Just add Amazon DRM.
Devices like the Sony Reader, Cybook, and Kindle DO NOT have glowing LCD screens.
Kindles can read a variety of non-proprietary, non-DRM'ed formats. They read TXT, HTML, JPEG, and non-DRM Mobi files directly.
A revolutionary portable reader that wirelessly downloads books, newspapers, magazines and blogs to a crisp, high-resolution electronic paper display that looks and reads like real paper, even in bright sunlight.