General Introduction to Radio Astronomy

Essential Radio Astronomy: A graduate-level radio astronomy course taught at the University of Virginia by NRAO staff members Jim Condon and Scott Ransom.

Millimeter Astronomy: An article written by NRAO staff member Jeff Mangum for The Encyclopedia of Physical Science and Technology (3rd Edition, Volume 9: Pages 853-871).
Introduction to Radio Interferometry: A brief, concise, and highly entertaining video introduction to radio interferometry video
Jansky lectures: essential presentations on the status of astronomy subfields and current questions
ALMA Primer Series on YouTube: video series produced by the NAASC (effort led at NRC), providing a basic introduction to radio interferometry, calibration, imaging, and other topics
I-Train video series : in depth video tutorial produced by the EU-ARC, on various inteferometry techniques and ALMA topics