Twitter as a vehicle for medical history

Twitter is a tool I don't use very often. The bulk of my active usage comes during conferences as a way to share what's going on and see what other attendees are posting. 

I never thought of it as a vehicle for medical history until I ran across three Twitter feeds that focus just on that. What a great way to share the history of medicine. Take a look (you don't need a Twitter account to view these pages, just an Internet connection). 

• Medical Heritage Library
• College of Physicians of Philadelphia History of Medicine
• Harvard Center for the History of Medicine