Zero Textbook Cost Resources (ZTC/OER/LTC)

DOAJ is a community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals. DOAJ is independent. All funding is via donations, 40% of which comes from sponsors and 60% from members and publisher members. All DOAJ services are free of charge including being indexed in DOAJ. All data is freely available.

Open Access Initiative is committed to make genuine and reliable contributions to the scientific community without restricting the access of published content. This publisher hosts over 700+ leading-edge peer reviewed Open Access Journals and organizes over 3000 International Conferences all over the world. Obtained enormous global visibility and tremendous response from the authors and readers from all over the world inspired the publisher to maintain reputed Open Access Journals in various scientific disciplines.

SpringerOpen is our portfolio of over 200 peer-reviewed, fully open access journals and over 500 open access books covering all areas of science, technology, medicine, the humanities and social sciences. Publishing with SpringerOpen makes your work freely available online for everyone, immediately upon publication.

From foundational science to new and novel research, discover our large collection of Physical Sciences and Engineering publications, covering a range of disciplines, from the theoretical to the applied.

All articles in open access journals which are published by Elsevier have undergone peer review and upon acceptance are immediately and permanently free for everyone to read and download.