Public Library of Science (PLOS) Is an open access database in science. Publishing seven open access journals, the nonprofit organization is committed to facilitating openness in academic research.
Elsevier – All articles in open access journals which are published by Elsevier have undergone peer review and upon acceptance are immediately and permanently free for everyone to read and download.
Open Science Directory. Search tool for open access journals and journals in special programs for developing countries.
Academic Journals. The Academic Journals publishes research articles in all areas of human study without financial restriction to readers using the open access model of publication. It covers research articles on medical sciences, social sciences, biological sciences, physical sciences, arts and education, legal sciences and other studies like peace and development studies. Learn about Academic Journals here.
Papers in Physics. This journal publishes original research in all areas of Physics and its interface with other subjects.
GreenFILE. A freely accessible research database focusing on topics about the environment and related issues.
Bioline International. These open access journals contain timely research on public health, international development, tropical medicine, food and nutritional security and biodiversity.