citation needed The Internet Archive's massive repository of scanned books will help Wikipedia fight the disinformation wars Cory Doctorow

openlibrary The Internet Archive's Open Library will let you sponsor a book, paying for it to be scanned Cory Doctorow

hathi trust Data-mining reveals that 80% of books published 1924-63 never had their copyrights renewed and are now in the public domain Cory Doctorow