• The American Academy of Arts & Sciences
• Council of Colleges of Arts and Sciences
• Digital Assets Repository, The Bibliotheca Alexandrina
• Internet Public Library
• Middle East Studies Association
• Nobelprize.org
• The Official Documents of the United Nations
• Open Learning Initiative at Carnegie Mellon University
• Open Yale Courses
• Project Gutenberg
• UNESCO: Open Training Platform
• The Universal Digital Library
• University of ​Washington – Open Free Courses