Open Access for Scholarly Publishing: Preprint Servers

"Academia.edu is a platform for academics to share research papers. The company's mission is to accelerate the world's research."

"...dedicated to making early versions of research outputs available, including original research articles and reviews. Content on Preprints is not yet peer reviewed and can receive feedback from readers."

"The Winnower is an open access online scholarly publishing platform that employs open post-publication peer review."

"Started in August 1991, arXiv.org (formerly xxx.lanl.gov) is a highly-automated electronic archive and distribution server for research articles. Covered areas include physics, mathematics, computer science, nonlinear sciences, quantitative biology, quantitative finance, and statistics. arXiv is maintained and operated by the Cornell University Library with guidance from the arXiv Scientific Advisory Board and the arXiv Member Advisory Board, and with the help of numerous subject moderators."