WikEM, The Global Emergency Medicine Wiki, is a point-of-care reference available on the web or via our dedicated mobile applications. Its emergency medicine knowledge base has thousands of quick problem-specific notes to help you care for patients, which is one of the reasons it has been downloaded by more than 100,000 users and is one of the top 10 most popular emergency medicine websites. Supported by the nonprofit OpenEM Foundation, WikEM provides a way for medical practitioners to organize online content and cross-reference clinical information at http://www.wikem.org. If you are a medical practitioner, join our contributor community and help edit our content. WikEM is intended for clinicians only and not directly for patients. WikEM serves a wide range of medical practitioners predominantly among the specialties of emergency medicine, pediatric emergency medicine, critical care, emergency medical services (EMS), and urgent care medicine, as well as primary healthcare fields such as family medicine, internal medicine, and pediatrics. Numerous sources have named WikEM as a key reference for emergency practitioners, ranging from EMTs, paramedics, and other first responders to nurses, nurse practitioners, physician assistants, and emergency physicians.