Friends of Frontiers (FoF) is the Internet platform for members of the not-for-profit Frontiers Research Foundation.

FoF is an attempt to build a community network around the concept of equal opportunity research publishing. Its mission is in alignment with the pioneering initiatives of the Open Access movement: The Budapest Open Access Initiative, the Bethesda Statement on Open Access Publishing, and the Berlin Declaration of Open Access to Knowledge in the Science and Humanities.