There is lots of great free content for your Kindle. FeedBooks.com is an especially Kindle-friendly place because it: 1) offers a Kindle-worthy listing of all the books available in the Mobipocket/Kindle format at FeedBooks, and, 2) unlike any other non-Amazon site, FeedBooks makes it possible for you to download directly to your Kindle, using the free Whispernet service, through their FeedBooks Mobile site. You can find the FeedBooks Mobile site under “Content” at the EduKindle Mobile site.

FeedBooks–Free Content for Your Kindle
FeedBooks Kindle Download Guide

You can find the complete works of William Shakespeare from MIT here:

Shakespeare’s Plays from MIT

The latest on the new Alice in Wonderland movie:

Alice in Wonderland Sourcebook

You can view these online through this link at EduKindle Mobile or you can download the plays as text files and install them on your Kindle using the USB port.