I apologize if this thread has already been posted. I looked but didn't run across it.
This is a list I ran across last night of free books from kindle, there are some good ones. I haven't checked every link to see that they're still free, but all the ones I did check were accurate with the list.
Note: the date appears misleading, I ignored the list twice because of that. But the post has been updated with a new list recently.
50 Free Books in the Kindle Store Kindle Review – Kindle 3 Review, iPad Review