The use of social media around the world has exploded in recent years, with the number of monthly active users of Facebook and Twitter estimated to be one billion and one quarter billion, respectively. Physicians and medical trainees are among the users of social media, raising questions of how Facebook, Twitter, and other novel online tools may best be harnessed to further medical research, patient care, and educational pursuits. Because social media enables an immediate exchange of information and ideas around shared areas of interest, it has fostered communication and collaboration among a...