More Freely Accessible Textbooks
Directory of Open Access Books: directory of academic, peer reviewed open access books.
epubBooks.com: free public domain eBooks that you can download in the EPUB format.
Google Books: Previews and full-text ebooks. Full-text books are out of copyright, or books in which Google received permission from the publisher to reproduce.
Internet Archive: Ebooks and Texts Archive: contains a wide range of fiction, popular books, children's books, historical texts, and academic books.
Project Gutenberg: first and largest single collection of free ebooks that are out of copyright in the United States.
PLOS (Public Library of Science): open access e-journals in science and medicine.
NCBI Bookshelf: free online access to ebooks and documents in life sciences and healthcare.
OAPEN Library: Open Access Publishing in European Networks (OAPEN) Library contains freely accessible academic books, mainly in the area of humanities and social sciences.
BioMed Central: part of Springer/Nature, BMC publishes open access journals in science and medicine.
Open Book Publishers: freely-available ebooks and e-textbooks in the Humanities and Social Sciences.
Project Muse: open access e-journals and ebooks from university presses and scholarly societies.
DOAB (Directory of Open Access Books): collection of peer-reviewed open access ebooks.
DOAJ (Directory of Open Access Journals): collection of peer-reviewed open access e-journals.
Mason OER Metafinder: provides a real-time, simultaneous search of 21 different sources for open educational resources
Practical Action Publishing: open access monographs on international development
Coronavirus-related Linked Free Content
Researchers may share the results of their research through an open access repository specific to their institution or discipline. These often include unpublished preprints, which are shared prior to undergoing the peer review process so other researchers may to see, discuss, and build upon the findings immediately.
CUNY Academic Works: is a service of the CUNY Libraries dedicated to collecting and providing access to the research, scholarship, and creative and pedagogical work of the City University of New York.
Digital Commons Network: browse or search across all institutional repositories hosted be bepress Digital Commons.
OpenDOAR: find the institutional repository for a specific college or university (i.e. MIT) and then search that repository for openly available research. This is especially useful if you know which schools have a strong program in your discipline.
AgriXiv: preprints for Agriculture and Allied Sciences
arXiv: a free distribution service and an open-access archive for scholarly articles in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics.
BioArXiv: is a free online archive and distribution service for unpublished preprints in the life sciences. It is operated by Cold Spring Harbor Laboratory, a not-for-profit research and educational institution.
BodoArXiv: open repository for medieval studies.
CORE: a nonprofit repository collecting open access humanities research. Run by the Modern Language Association.
EarthArXiv: preprint service for the Earth Sciences
EcoEvoRxiv: preprint service for ecology, evolution, and conservation
ECSarXiv: preprint service for electrochemistry and solid state science and technology
EdArXiv: preprint server for the Educational Research Community
engrXiv: open archive of engineering
LawArXiv Papers: openly available legal scholarship
MediArXiv: open archive for media, film, and communication studies
MindRxiv: open archive for research on mind and contemplative practices
NutriXiv: preprint service for the nutritional sciences
PaleorXiv Papers: preprint archive for Paleontology
PsyArXiv Preprints: preprint service for the psychological sciences. Maintained by The Society for the Improvement of Psychological Science
PubMed Central: a free full-text archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health's National Library of Medicine (NIH/NLM)
SocArXiv Papers: open archive of the social sciences
SportRxiv: open access subject repository for Sport, Exercise, Performance, and Health Research
Social Science Research Network: an eLibrary that provides access to papers from researchers in more than 50 disciplines
OA Button is a Firefox Browser Extension used to identify open access versions of research articles. If a version is not found, users can log-in to request that the author make one available.
(available at no cost for courses)