Audiovisual
The Great Courses Plus (paid)
Masterclass (paid)
videolectures.net (Free)
WGBH Forum (Free)
Gresham College Lectures (Free)
C-Span American Writers (Free)
C-Span Lectures in History (Free)
Historical Association podcasts (Free)
Ted Talks History (Free)
Ted Talks Literature (Free)
Kahn Academy World History (Free)
Past Lectures at the Library of Congress (Free)
Front Row lectures (Free)
The Great Lives lecture series (Free)
Yale University Open Courses (Free)
MIT Open Courseware (Free)
University of Berkeley Lectures (Free)
BBC In Our Time Radio Archive (Free)
Stud Terkel radio interviews (Free)
Talking History radio archive (Free)
UCTV Conversations with History (Free)
New Books Network (Free)
FreeVideoLectures.com (Free)
Librivox Audiobooks (Free)