Dermpedia is an on-line platform for sharing dermatology and dermatopathology knowledge and experience. Our mission is to collect and disseminate the knowledge, science and experience of dermatology and dermatopathology, fields of medicine concerned with understanding, diagnosing and treating diseases of the skin. Dermpedia serves as an online community for practicing physicians, medical students and trainees. Dermpedia is a wiki, a free user-editable encyclopedia of dermatology and dermatopathology, open to the entire community of dermatopathologists, dermatologists and general pathologists interested in skin diseases.