Bookshelf provides free access to books and documents in life science and healthcare. A vital node in the data-rich resource network at NCBI, Bookshelf enables users to easily browse, retrieve, and read content, and spurs discovery of related information.
Books contributed by the World Health Organization. The Internet Archive offers permanent access for researchers, historians, scholars, people with disabilities, and the general public to historical collections that exist in digital format.
The aim of the DOAJ is to increase the visibility and ease of use of open access scientific and scholarly journals, thereby promoting their increased usage and impact.
PLOS is a non-profit organization of scientists and physicians committed to making the world's scientific and medical literature a freely available public resource.
