According to a recent research letter in JAMA, more than 90 percent of state medical boards have received at least one complaint of bad online behavior. The complaints came from patients, family members, fellow physicians, and other medical personnel. "Like everyone else, doctors sometimes stumble in their online behaviors and make mistakes in judgment about content they post," Dr. Ryan Greysen, the lead author of the study and an assistant professor of medicine at UCSF, told me. Indeed, more than one half resulted in suspension, revocation, or limitation of the physician’s license. As recently as 2010, only 10 percent of medical schools had social media policies, according to an article in Medical Education Online.