Books Better — Index Of Epub
Unmaintained servers frequently go offline, resulting in broken links and lost access. Elements of a Better ePub Index
They take public domain books (like those from Project Gutenberg) and professionally typeset them. They are arguably the "best" EPUBs available anywhere. Project Gutenberg: index of epub books better
: Often cited by users on Reddit as the most complete index for finding both fiction and non-fiction without a login. Unmaintained servers frequently go offline