https://www.smashwords.com/books/view/44057
It's listed as free over at Smashwords and seems to have some good links including one to "The Magic Catalog of Project Gutenberg E-Books" which has a large # of links to ebooks over at the Gutenberg site. I've been able to download several E-Books from it while viewing in my Mobipocket Reader. Haven't tried it on my Kindle for PC app as yet and I can't say how easy it is to access via Kindle itself as I don't have one as yet.