the only possible thing better than free books are new books that are free, which you can't get.

but until that is possible, here is access to many great authors that people like you and me pay good money to buy when in fact they are FREE over the net, since they are public domain!

http://www.pagebypagebooks.com/
http://en.wikibooks.org/wiki/Wikibooks:How_to_obtain_public_domain_books
http://www.authorama.com/
http://www.booksforabuck.com/general/pubsources.html
http://www.ezau.com/latest/articles/public-domain.shtml
http://www.classic-literature.co.uk/
http://www.pdbooksonline.com/