Free books for the iPad

Applications:

STANZA
Download the free Lexcycel app from the Apple Store. Then go to Safari and go to the  Project Gutenberg Mobile Site, find your book and download the ePub. Safari will close and Stanza will start downloading the book.

iBooks
Apple's free app for all books free and otherwise.

Kindle
Kindle's free app for the ipad.

Audiobooks
Free app for listening to audio books.

B&N eReader
Barnes & Nobles free app for their store.

WebSites

BOOKS.GOOGLE.COM
Features public domain books in epub format. Does use OCR, so there might be some mistakes.

EPUBBOOKS.COM
Free books from Project Gutenberg.

GUTENBERG.ORG
Site to download books that have expired copyrights.