Threebies
One of the great qualities of the Kindle is access to great classic works without having to make a trip to the library or the book store. Here are some favorites I found available for free:
. My Antonia
. Robinson Crusoe
. Uncle Tom's Cabin
If you have a buck to spare, you can add The Brothers Karamazov.
FYI the top download currently is Freedom by Franzen. But that one'll set you back $12.99, and for $1.01 more you can have a hardcover version to lend to a friend, donate to a library, or cash in at a used book store.