The Ultimate Social Media in Medicine Presentation (182 Slides)
The author, Maged Boulos, has published widely on social media uses in medicine and health informatics. He features this website in the presentation as one of the examples of medical blogs but I have had no influence on the inclusion. The link is via Berci.
Social media in medical education - Grand Rounds presentation by IUH Med/Peds residency program director http://goo.gl/Zw3lK