МЕБ (Македонски електронски библиотеки): http://w3.nubsk.edu.mk/
Taylor & Francis Ebooks and Digital Products: https://issuu.com/newbooksinformation
Open Book Publishers: https://www.openbookpublishers.com/
Cambridge University Press: https://www.cambridge.org/core
EIFL: http://www.eifl.net/
The Intelligent Publishing Platform: http://highwire.stanford.edu/