Fair Use copyright law
The Alcohol Library is a NON-PROFIT, teaching and research facility. It delivers material for viewing one-page-at-a-time. This is in stark contrast to all the other collections out there e.g. Google Books, The Kindle reading system et al. Those facilities require the download of whole chunks of the book, even the entire work, before they can be read. That, in my humble opinion is NOT a secure delivery system. It encourages thieves.
The Alcohol Library system delivers a single page on-demand, and we promote each source work via a free advertising link, for readers to search for and purchase hard copies from distributors if they so desire. Quite frankly, The Alcohol Library is promoting Publishers and Authors for free, to a target interested audience (you the students). Many of the said authors and their literature would never get such precise exposure in normal circumstances, not even by their own publishers.
We believe this system to be unique, and an entirely new direction in teaching & learning support. Go over the information from Cornell University Law School and see what you think...
Addressing each point in turn...
re: (1) The Alcohol Library is a non-profit education and
re: (2) The copyrighted works themselves are educational or informational resources, meant to provide knowledge to interested users.
re: (3) Single page delivery from a work consisting of sometimes 2000 pages plus, is infinitesimal. Of course, as with any system, you could screen dump each page. I guarantee you'll stop well before you get even one chapter. Buying the book is a far easier option.
re: (4) Providing book and author exposure (free promotion), can only INCREASE hardcopy booksales and EXPAND the market potential. Thus authors and publishers make MORE money, at NO COST to themselves.