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Online Science Journals

Directory of Open Access Journals 

DOAJ offers free full-text access to 551 scientific and scholarly journals.


Free Medical Journals Online 

Free journals offering full-text online, ranging from basic science and chemistry to microbiology and toxicology.



An archive for back issues of selected scientific journals. Access 618,598 free full-text articles. Note: Not all of their articles are free, full-text.


The Public Library of Science: Biology 

The pioneering new open-access journal co-published by Harold Varmus, former NIH Director.


PubMed Central 

The barrier-free NIH repository for peer-reviewed primary research reports in the life sciences, which began accepting journal articles in January 2000.

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