Ebooks OPDS sources

• Feedbooks: http://www.feedbooks.com/catalog.atom

• Smashwords: http://smashwords.com/atom

• Manybooks: http://manybooks.net/opds/

• Shucang (books in Chinese): http://www.shucang.com/s/index.php

• BooksOnBoard: http://www.booksonboard.com/xml/catalog.atom

• Project Gutenberg: http://m.gutenberg.org/ (returns HTML or OPDS depending on user-agent)