PMC is a collection of medical journals. it is a collaborative effort between NLM, the publishers whose journal content makes up the PMC archive, and organizations in other countries that share NLM’s interest in archiving life sciences literature.
Publisher of more than 160 peer-reviewed focus on medical related subjects, open access journals, The research articles in all journals published by BioMed Central are ‘Open Access’. They are immediately and permanently available online.
Access to 432 full text journals from computer science, mathematics, engineering, geosciences. Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.
JSTOR is a shared digital library created in 1995 to help university and college libraries to free space on their shelves, save costs, and provide greater levels of access to more content than ever before. JSTOR currently includes more than 2,000 academic journals, dating back to the first volume ever published, along with thousands of monographs and other materials relevant for education.