A poster on the Drug Policy Forum of Texas list suggested the above video in the context of a University of California at San Francisco course on cannabis therapeutics that is accredited by the AMA and the ANA (American Nurses Association).
Here is what the www site has to say about the accreditation.

The University of California, San Francisco School of Medicine (UCSF) is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians.
UCSF designates this educational activity for a maximum of 10 AMA PRA Category 1 Credits™. Physicians should only claim credit commensurate with the extent of their participation in the activity.

One of the presenters in the course is Angel Raich who was the subject of a Supreme Court Decision. I always liked Justice Thomas’ dissent in that case. Angel said before the decision (it could have been after) that no mater how the decision went she intended to keep growing and using her medicine.
Some good books on the subject:
Marihuana: The Forbidden Medicine
Medicinal Uses of Cannabis and Cannabinoids
And for those of you into medicinal horticulture:
Marijuana Horticulture: The Indoor/Outdoor Medical Grower’s Bible
Cross Posted at Power and Control