framework based on PostgreSQL, and Infogami, its own Wiki engine written in Python. The source code to the site is published under the GNU Affero General Public License. Book sponsorship program In the week of October 21, 2019, the Open Library website introduced a Book Sponsorship program, which according to Cory Doctorow, "lets you direct a cash donation to pay for the purchase and scanning of any books. In return, you are first in line to check that book out when it is available, and then anyone who holds an Open Library library card can check it out.". The feature was developed by Mek Karpeles, Tabish Shaikh, and other members of the community. Books for the blind and dyslexic The website was relaunched adding ADA compliance and offering over 1 million modern and older books to the print disabled in May 2010 using the DAISY Digital Talking Book. Under certain provisions of United States copyright law, libraries are sometimes able to reproduce copyrighted works in formats accessible to users with disabilities. Copyright violation accusations The Open Library has justified its ability to offer full contents of books in digital formats as part of the first-sale doctrine and fair use law. The Open Library owns a physical copy of each book that they have made available, and thus argue that the lending out of one digital scan of the book in a controlled manner falls within the first-sale doctrine, a practice known as Controlled Digital Lending and in use by multiple public and academic libraries. Since its launch, the Open Library has been accused of mass copyright violation by numerous groups, including the American Authors Guild, the British Society of Authors, the Australian Society of Authors, the Science Fiction and Fantasy Writers of America, the US National Writers Union, and a coalition of 37 national and international organizations of "writers, translators, photographers, and graphic artists; unions, organizations, and federations representing the creators of works included in published books; book publishers; and reproduction rights and public lending rights organizations". The UK Society of Authors threatened legal action in 2019 unless the Open Library agreed to cease distribution of copyrighted works. The Open Library further came under criticism from several authors and publishers groups when it created the National Emergency Library in response to the COVID-19 pandemic in March 2020. Under these exigent circumstances, the National Emergency Library removed the waitlists of all