Lista de diretórios, portais, editores e outros recursos científicos disponíveis em Acesso Aberto:
RCAAP (Repositório Científico de Acesso Aberto de Portugal)
OpenDOAR (Directory of Open Access Repositories)
OpenAIRE (Open Access Infrastructure for Research in Europe)
DOAJ (Directory of Open Access Journals)
DOAB (Directory of Open Access Books)
WorldWideScience.org - The Global Science Gateway
Paperity - Open Science Aggregated
ROAD (Directory of Open Access Scholarly Resources)
E-LIS (E-prints in Library & Information Sciences)
Taylor&Francis Open and Routledge Open
PLOS (Public Library of Science)
SciELO Scientific Electronic Library Online
OATD (Open Access Theses and Dissertations)
NDLDT (Networked Digital Library of Theses and Dissertations)