Open Educational Resources

Free distribution service and an open-access archive for nearly 2 million scholarly articles in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics. Materials on this site are not peer reviewed by arXiv.

"Community-curated directory that indexes and provides access to high quality open access, peer-reviewed journals."

"Global coalition committed to making Open the default for research and education. SPARC empowers people to solve big problems and make new discoveries through the adoption of policies and practices that advance Open Access, Open Data, and Open Education."