When searching for PD epubs, I have come across a few sites repeatedly - I do check MR first, of course. If you have experience with one or more of these, please comment on the typical quality of the epubs from these sites:
Feedbooks.com (epubs seem better on average than PG and manybooks)
booksshouldbefree.com (they have many PD audiobooks, too)
ebooks@Adelaide (
http://ebooks.adelaide.edu.au/)
epubbooks.com
Thanks,
Lee