Research Guides: Open Access: OA Collections

Open Access Repositories & Preprint Servers

A selection of disciplinary repositories and pre-print servers, including those from publishers, academic institutions, and government entities.

ArXiv
Archive of over 1 million preprint and postprint articles in physics, mathematics, computer science, quantitative biology, quantitative finance and statistics. From Cornell University.
Digital Commons Network
"Curated by university librarians and their supporting institutions, the Network includes a growing collection of peer-reviewed journal articles, book chapters, dissertations, working papers, conference proceedings, and other original scholarly work."

bioRxiv.org
Online archive and distribution service for unpublished preprints in the life sciences, operated by Cold Spring Harbor Laboratory.
ChemRxiv: The Preprint Server for Chemistry
Repository for open access chemistry preprints. Sponsored by the American Chemical Society.
DASH: Digital Access to Scholarship at Harvard
A central, open-access repository of research by members of the Harvard community.
EarthArXiv
Preprint server for the Earth Sciences
ESSOAr: Earth and Space Open Archive
Archive from the American Geophysical Union for Earth and Space Sciences
NSF Public Access Repository
NSF Public Access Repository (NSF-PAR) is the designated repository where NSF-funded investigators deposit peer-reviewed, published journal articles and juried conference papers.
MarXiv
Open access repository for ocean and marine-climate sciences (archival-only, submissions no longer being accepted.)

Free and Open Access Books

These books are freely available for download, but are generally not licensed for remixing or other derivatives. Please check individual titles before using in the classroom or online teaching.

Directory of Open Access Books (DOAB)
An online directory that indexes and provides access to over 2300 academic peer-reviewed books from 78 publishers.
Luminos
Open Access monographs from the University of California Press
National Academies Press
Access to nearly 6,000 free ebooks in the sciences. (Free registration is required to download PDF files.)
NCBI Bookshelf
An online collection of full-text books, reports, databases and other documents in life science and healthcare
Open Research Library
Selected titles from high-quality academic publishers and university presses (from Bibliolabs & KnowledgeUnlatched)
IntechOpen
A member of the UN SDG Publishers Compact, IntechOpen is the publisher of over 6,000 Open Access books specializing in technology, science and medicine.
OAPEN - Online Library and Publication Platform
Online repository and publication platform for Open Access books, providing peer-reviewed books in the humanities and social sciences.
HathiTrust Digital Library
Digital preservation repository and highly functional access platform. HathiTrust provides long-term preservation and access services to digitized content from a variety of sources, including Google, the Internet Archive, Microsoft, and in-house member institution initiatives. Items in the public domain are in full-view for everyone and items held in copyright are searchable.

Open Access Journal Collections

BioMed Central
BMC provides access to over 200 peer-reviewed open access journals in biology, biomedicine and medicine.

Directory of Open Access Journals (DOAJ)
DOAJ is a community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals. Full text.

Elsevier: Open Access
Open Access titles from Elsevier (note: some overlap with ScienceDirect collection.)
JSTOR Open Content
Search thousands of free journal articles and open access book chapters.
PLoS: Public Library of Science
Collection of open access Science journals including PLoS One, PLos Biology, and PLoS Medicine.
Science Direct: Open Access
Open Access titles from ScienceDirect (note: some overlap with Elsevier collection.)
SpringerOpen
Collection of Open Access materials (including books and journals) from Springer.

Search Engines & Directories

BASE: Bielefeld Academic Search Engine
Searches nearly 80 million academic open access web resources, both documents and media.
Internet Archive Scholar
Includes over 25 million research articles and other scholarly documents preserved in the Internet Archive. The collection spans from digitized copies of eighteenth century journals through the latest Open Access conference proceedings and pre-prints crawled from the World Wide Web.
Open Access Theses and Dissertations
PQDT Open
Access to open access dissertations and theses through ProQuest.