Bioline International Not-for-profit electronic publishing service managed by scientists and librarians; committed to providing open access to quality research journals published in low and middle income countries
BIREME - Portal of Journals on Health Sciences, mix of open access and subscription Journals (primarily in Portuguese or Spanish)
DOAJ - Directory of Open Access Journals (multisciplinary)
Freemedicaljournals.com - Promotes free access to medical journals, listed alphabetically, by specialty, or language.
Open Science Directory - Free searchable database of the growing collection of articles free in low and middle income countries. This site is provided by EBSCO Information Services.
PubMed Central (PMC) - A free digital archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health (NIH), developed and managed by NIH's National Center for Biotechnology Information (NCBI) in the National Library of Medicine (NLM).
Europe PMC - Based on PMC, provides a stable, permanent, and free-to-access online digital archive of full-text, peer-reviewed publications. Option to filter to free full text after a search has been executed.
redalyc.org - Diamond (i.e., no fee), open access journals from around the world that share the non-profit publishing model
