@tripu IMO: most good books in math and CS are either freely available or priced reasonably enough and have non-abusive publishers so you shouldn't pirate them.
But I loved that site as a student. I could get almost any book on any subject I wanted and didn't have to go to the library for it.
@swiley #StandardEbooks is doing a great job, but they go manually through editions, therefore have a very limited collection (compared to https://www.gutenberg.org/ , https://www.wikibooks.org/ , https://openlibrary.org/ , https://archive.org/details/books , etc). #books
@tripu Oh really? I've had good experiences with standard ebooks[1] I've been (slowly) going through the Karamozov Brothers.
[1] https://standardebooks.org/