Taylor & Francis Open Access
Springer Journals
SCOAP3 – The Sponsoring Consortium for Open Access Publishing in Particle Physics
Scientific Research Publishing
Revistas CSIC: revistas electrónicas del Consejo Superior de Investigaciones Científicas (CSIC)
MDPI | Journals
Internet Scientific Publications
Free Medical Journals
Biomed
Academic Journals
SciELO.org
Sistema de Información Científica Redalyc, Red de Revistas Científicas
PubMed Central (PMC)
Revistas eUSAL
Directory of Open Access Journals – DOAJ
Dialnet
+Bioline
Archives of Medical Science