Cuadernos de pedagogía : [portal web]
Library of Latin texts : LLTA
Index Religiosus : International Bibliography of Theology, Church History and Religious Studies
Index theologicus (IxTheo) : Zeitschrifteninhaltsdienst Theologie der Universitätsbibliothek Tübingen
Formación en red
Dialnet Plus
eLibro
Educalex
ERIC : (Education Resources Information Center)
Encyclopedia of the Bible and its reception online : EBR
Europeana
Globethics
HATHITRUST Digital Library
Hispana
MathEduc database
MyNews
Judaica Europeana
OER Commons : Open Educational Resources
Biblioteca digital de enfermería
Diccionario de la lengua española