Associação 25 de Abril – Guerra Colonial (1961-1974)
https://guerracolonial.pt/mapa-do-sitio-da-guerra-colonial/

Biblioteca Digital Camões
http://cvc.instituto-camoes.pt/conhecer/biblioteca-digital-camoes.html

CADMUS - EUI's Research Repository
http://cadmus.eui.eu/

Centro de Documentação e Publicações “Fundação Cuidar o Futuro” /Maria de Lourdes Pintasilgo - Cuidar (MPL)
https://www.arquivopintasilgo.pt/arquivopintasilgo/Site/Default.aspx

Confederation of Open Access Repositories (COAR)
https://www.coar-repositories.org/

Directório Luso-Brasileiro de Repositórios e Revistas de Acesso Aberto
http://diretorio.rcaap.pt/

Directory of Open Access Books
http://www.doabooks.org/

Directory of Open Access Journals (DOAJ)
http://www.doaj.org/

Directory of Open-Access Social Science Journals
http://vaggi.org/en/directory-social-science-open-access-e-journals

Directory of Open Access Repositories (DOAR)
http://www.opendoar.org/

DRIVER – Digital Repository Infrastructure Vision for European Research
http://www.driver-community.eu/

Graduate Journal of Social Science (GJSS)
http://gjss.org/

Humanities & Social Sciences Online (H-Net)
http://www.h-net.org/

OKR - Open Knowledge Repository - World Bank Group
https://openknowledge.worldbank.org/

Open Access Scholarly Publishers Association (OASPA)
http://oaspa.org/

Open Access Theses and Dissertations>
http://www.oatd.org/

Registry of Open Access Repositories (ROAR)
http://roar.eprints.org/

Répertoire des Bases de Données GrAtuites Disponibles sur Internet (DADI)
http://dadi.univ-lyon1.fr/

Repositório Científico de Acesso Aberto de Portugal (RCAAP)
http://projeto.rcaap.pt/

Repositórios Institucionais Portugueses
http://www.uc.pt/fcdef/documentosbiblioteca/Bibliotecadigital/Repositorio

Servicio de Información Comunitario sobre Investigación y Desarrollo
http://cordis.europa.eu/

Scholarly Publishing and Academic Resources Coalition (SPARC)
http://www.sparc.arl.org/

SHERPA – Permite open-access a Repositórios institucionais universitários de forma a facilitar a recuperação e disseminação do conhecimento académico
http://www.sherpa.ac.uk/repositories/

Social Sciences Directory
http://www.socialsciencesdirectory.com/index.php/socscidir

Social Science Open Access Repository (SSOAR)
http://www.ssoar.info/en.html

Social Science Research Council (SSRC)
http://www.ssrc.org/

Social Science Research Network (SSRN)
http://www.ssrn.com/

TEL - servidor de teses multidisciplinares em linha
https://tel.archives-ouvertes.fr/