A pioneer of open access publishing, BMC has an evolving portfolio of high quality peer-reviewed journals including broad interest titles such as BMC Biology and BMC Medicine, specialist journals such as Malaria Journal and Microbiome, and the BMC Series.

PubMed® comprises more than 33 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.

DOAJ is a community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals.

All DOAJ services are free of charge including being indexed. All data is freely available.

Established in 1996, EurekAlert! is a nonprofit news-release distribution platform operated by the American Association for the Advancement of Science (AAAS) as a resource for journalists and the public. EurekAlert! hosts news releases produced by universities, journal publishers, medical centers, government agencies, corporations, and other organizations engaged in all disciplines of scientific research. News releases must meet EurekAlert!'s longstanding eligibility guidelines in order to be accepted and hosted on the website.

DSpace@MIT is a digital repository for MIT's research, including peer-reviewed articles, technical reports, working papers, theses, and more.

DSpace@MIT is used by researchers around the world. You can view the stats for the top papers by download, or view, as well as the top countries from which people access DSpace

Built on the widest range of trusted, high-quality, interdisciplinary research and scholarly literature, ScienceDirect helps uncover answers to the world’s most pressing questions. Whether you’re a teacher, student, librarian or researcher, ScienceDirect will help you build a solid knowledge foundation, stay on top of your field and gain in-depth insights into trending topics as you take your next steps in discovery.