Authors Alliance Resources - guides to copyright fundamentals, fair use for nonfiction authors, negotiating book publication contracts, understanding open access publishing, understanding rights reversion, and termination of transfer
SPARC - The Scholarly Publishing and Academic Resources Coalition is an international alliance of academic and research libraries working to correct imbalances in the scholarly publishing system.
Creative Commons - Creative Commons is a nonprofit organization that enables the sharing and use of creativity and knowledge through free legal tools.
Public Library of Science (PLoS) - whose advocacy mission is to accelerate progress in science and medicine by leading a transformation in research communication.
Open Access Scholarly Publishers Association (OASPA) - exchanging information, setting standards, advancing models, advocacy, education, and the promotion of innovation for open access publishers.
Confederation of Open Access Repositories (COAR)
AgriXiv - agriculture and allied sciences
Arabixiv - content is in Arabic
arXiv - physics, mathematics, computer science, quantitative biology, quantitative finance, and statistics
bioRχiv - life sciences
BodoArXiv - medieval studies
ChemRxiv - chemistry and related fields
Cogprints - cognition in psychology, neuroscience, linguistics, as well as some areas of computer science, philosophy, biology, medicine, and anthropology
EarthArXiv - earth sciences
EcoEvoRxiv -ecology, evolution, and conservation
EdArXiv - education research
engriXiv - engineering
FocUS Archive - focused ultrasound research
Frenxiv - content is in French
LawArXiv - legal scholarship
LISSA - library and information studies
MarXiv - ocean and marine-climate sciences
MediArXiv - media, film, and communication studies
MedRχiv - health sciences
MindRxiv - mind and contemplative practices
NutriXiv - nutritional sciences
PaleorXiv - paleontology
PsyArXiv - psychological sciences
SocArXiv - social sciences
SportRχiv - sport, exercise, performance, and health
Thesis Commons - theses in multiple disciplines