The Psychiatric Times recently conducted a survey of Psychiatrists regarding their attitudes, opinions and knowledge regarding medical marijuana. The results are predictably mixed. Find out more at this link: http://www.prnewswire.com/news-releases/the-dope-on-medical-marijuana-results-of-a-survey-of-psychiatrists-from-psychiatric-times-215100931.html
If you're looking for a resource that is not so heavy on the medical language, but still includes great, evidence-based information for what conditions medical marijuana has been shown to be effective, you can check out this book.
Now, my word of caution is that, as a medical community, we are just beginning to figure out and standardize the prescription and use of medical marijuana, so still I strongly recommend that you talk to your physician about anything you read in this book. Still, it is a great starting point.