Barnes & Noble is offering free MP3 downloads of nine different books/short stories through May 16, 2009.
What books are available?
The Babysitter's Code by Laura Lipman
Super Goat Man by Jonathan Lethem
Best New Horror by Joe Hill
Great Day by Kurt Vonnegut
Fathers by Alice Munro
Truth or Dare by Elizabeth Berg
Ysrael by Junot Diaz
Merrano of the Dry Country by Louis L'Amour
The Adventures of Tom Sawyer by Mark Twain
To download, you'll have to open up an account and give them your credit card number, though it won't be charged.