http://gen.lib.rus.ec (Working as of 8/1/16)
http://textbooknova.com (Working as of 8/1/16)
http://en.bookfi.org/ (Appears to be offline)
http://www.gutenberg.org (Working as of 8/1/16)
http://ebookee.org (Working as of 8/1/16)
http://www.manybooks.net (Working as of 8/1/16)
http://www.giuciao.com (Working as of 8/1/16)
http://www.feedurbrain.com (Working as of 8/1/16)
http://oll.libertyfund.org/index.php?option=com_content&task=view&id=380 (Working as of 8/1/16)
http://www.alleng.ru/ (Working as of 8/1/16 - However, site is entirely in Russian)
http://www.eknigu.com/ (Working as of 8/1/16 - However, site is entirely in Russian)
http://ishare.iask.sina.com.cn/ (Working as of 8/1/16 - However, site is entirely in Chinese)
http://2020ok.com/ (Working as of 8/1/16)
http://www.freebookspot.es/Default.aspx (Working as of 8/1/16)
http://www.freeetextbooks.com/ (Working as of 8/1/16 - appears to require Bittorrent to download)
http://onebigtorrent.org/ (Working as of 8/1/16 - appears to require Bittorrent to download)
http://www.downeu.me/ebook/ (Appears to be offline)
http://bookzz.org/ (Working as of 1/31/17)
Guide for Finding Textbooks (tutorial): https://www.reddit.com/r/Piracy/comments/3i9y7n/guide_for_finding_textbooks/
http://forums.mvgroup.org (Working as of 8/1/16 - appears to require Bittorrent to download & mandatory sign up [Note: I remember this site as being a Bittorrent site for mainly documentaries]
http://theaudiobookbay.com/ (Working as of 8/1/16 - appears to require Bittorrent to download)
Free full published studies: http://sci-hub.cc/ (Follow them on Twitter @Sci_Hub as they keep getting taken offline)
Open Source College Textbooks: https://openstax.org/subjects
Open Textbooks: http://collegeopentextbooks.org/
Free Public Domain Audio Books https://librivox.org/
You can also rent textbooks for very cheap from Amazon. They ship you a copy of the book and you mail it back to them once the semester is over and you save a LOT of money. You can even download them digitally to use on Amazon's Kindle reader, which you can download for iPhone or Android. As a student, you're eligible for 50% off Amazon Prime (free shipping, Amazon's music service which is similar to Spotify or iTunes, their movie watching service, which has about the same selection as Netflix) and you get free shipping on most everything. Even if you're not a prime member, you get free 2 day shipping on textbook rentals and can make $5 if you tell a friend about the service. http://amzn.to/2ah1AHw
Original source: http://s.imgur.com/gallery/il8o8xF The actual original post seems to be a Reddit post from 5 years ago with a little more information, but hasn't been updated since, as far as I can tell. https://redd.it/hrgmv
UPDATE: A more recent post from 1 year ago: https://redd.it/2eguxy
Here is another guide for finding free text books, however, I cannot vouch for whether or not any of the methods work: https://redd.it/3i9y7n
Bittorrent is easier to use than you think. If you can run Java, here is a web based BT client: http://www.bitlet.org
You can also run BT via a web browser using the Google Chrome extension JSTorrent https://chrome.google.com/webstore/detail/jstorrent/anhdpjpojoipgpmfanmedjghaligalgb?hl=en (However, it costs $3)
2016 Getting Started with Bittorent guide: http://netforbeginners.about.com/od/peersharing/tp/Torrent-Download-Guide.htm you will probably also need to forward the port in your router, so visit https://portforward.com/
Alternately, here are two other web based Bittorrent clients:
1) WebTorrent https://webtorrent.io/
2) βTorrent https://btorrent.xyz/
They will, however, be slower than regular executable Bittorrent clients, such as these:
1) The Top 10 Best Bittorrent Clients for Windows: http://www.techradar.com/news/the-best-free-torrent-client
2) The Top 7 best Bittorrent Clients for Mac: https://mac.eltima.com/best-torrent-clients-for-mac.html
If you have more sites to contribute, please HMU on Twitter @pogue25
REMEMBER AARON SWARTZ AND HIS FIGHT! INFORMATION SHOULD BE FREE!
SIGN THE PETITIONS TO LOWER COLLEGE TEXTBOOK PRICES:
http://petitions.moveon.org/sign/lower-college-textbook
http://www.textbookrebellion.org/
http://studentpirgs.org/campaigns/sp/make-textbooks-affordable
Create your own petitions on change.org and put the word out!
College textbooks are the biggest monopoly on higher education and prevents many people from affording getting degrees.
*** ARTICLES ***
College textbooks are a racket https://www.washingtonpost.com/news/monkey-cage/wp/2015/10/21/college-textbooks-are-a-racket/
Why Are College Textbooks So Absurdly Expensive? http://www.theatlantic.com/business/archive/2013/01/why-are-college-textbooks-so-absurdly-expensive/266801/
College Textbook Prices Have Risen 1,041 Percent Since 1977 http://www.nbcnews.com/feature/freshman-year/college-textbook-prices-have-risen-812-percent-1978-n399926
College Textbook Prices Increasing Faster Than Tuition And Inflation http://www.huffingtonpost.com/2013/01/04/college-textbook-prices-increase_n_2409153.html
