I saved this comment from another person:
http://www.ebooksdownloadfree.com/
http://www.Avaxhome.ws
Here are other websites:
http://softarchive.net/
http://www.librarypirate.ph/
http://www.ebook3000.com/
http://sharebookfree.com/
http://it-ebooks.info/
http://www.myrls.me/e-books/
http://www.ebook3000.com/
http://www.thefreelibrary.com/
http://en.bookfi.org/
http://en.wikibooks.org/wiki/Mai...
https://piratereverse.info/ (TPB actually)
Edit:
Added /u/sithyiscool comment here for my own reference!:
and thanks for the Gold stranger!)
http://gen.lib.rus.ec/
http://libgen.info/
http://bookos.org/
http://www.sharedbookz.com/
http://gen.lib.rus.ec/
http://libgen.info/
http://bookos.org/
http://www.sharedbookz.com/
Warning: Some of these sites may be defunct, and a few of them host malware so make sure to use proper antivirus.