Social media tools have the potential to build on the interactivity of e-learning with additional features that are more learner-generated, collaborative, and engaging.17 However, use of social media by physicians and medical trainees has given rise to concerns about patient privacy and online professionalism.18–21 There is an urgent need for a synthesis of the evidence on social media use in medical education to inform educators and researchers of any demonstrated bene ts that would justify the potential risks of incorporating social media tools into educational interventions. Such evidence may lessen the “cultural lag” that often accompanies the adaptation of novel technology to medical education.