PubMed Central

About

PubMed Central (PMC) is the U.S. National Institutes of Health (NIH) free digital archive of biomedical and life sciences journal literature.

Re-use/openness

Mixed. Some all rights reserved, some open access, some public domain. See copyright notice for more information.

Downloading

There is a 960 mb torrent file of the open access subset which was made available on 2008-09-08.

PubMed Central also has an FTP site ftp://ftp.ncbi.nlm.nih.gov/pub/pmc, containing the entire Open Access subset. Available as individual journal archives or in aggregated sets (as linked below).