Manhattan Research found a range of online continuing-medical-education use. The group with the least reliance on the Internet for continuing medical education comprises 161,000 physicians who use the Internet for an average of 3.8% of continuing-medical-education hours. About 112,000 physicians are moderate users who are online for 10.8% of their total continuing medical education. The electronic continuing-medical-education group most dependent on the online venue account for almost 40% of toal continuing-medical-education hours online. This group comprises 145,000 physicians.
Lectures have proven to be the least effective way of educating physicians, if the goal of education is to change practices.

