As glued to the net as we all are, there's vast quantities of content that is not available online.
The Kindle supports Mobipocket files directly. You don't need to write a script to do that.
The Kindle has many flaws, but it does allow you to read a few different non-DRM formats.
Granted the PDF converter seems to have some trouble with graphics PDF's, but for books the converter works very well.
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.