One of the longest running podcasts. http://www.dopefiend.co.uk/

This guy was buying weed from Canada 5 years ago and reviewing them on his podcast along with questions and humor. There is also a show there called the grow report that was very informative. Especially if one were to be growing Medical Marajuana. I am gonna subscribe to the podcast again and start finding out where Cannabis is headed. I guess I can listen to them at work.