What Wikipedia has done for knowledge, a San Francisco company called CrowdMed is betting it can do for medicine. Send your symptoms and a nominal fee to CrowdMed.com, and dozens of medical professionals, students and average Joes will crowdsource" - that is, share their knowledge and expertise - to help diagnose what's wrong with you. The company isn't out to replace your family doctor, but instead take advantage of the reach of social media to tap into an age-old medical practice: seeking second opinions. Or, in this case, hundreds of them. At the UC-Berkeley/UC-San Francisco Joint Medical Program, Dr. Amin Azzam, director of the "problem-based learning" curriculum, wants to use CrowdMed "to push the boundaries of how we train medical students." Instead of teaching first- and second-year students with "pretend patients," as is done now, Azzam is proposing adding CrowdMed's cases to the curriculum. "They might even be more motivated to learn because it's a real patient," he said. Within 90 days of a consumer putting a case online, CrowdMed's algorithm generates a list of the most probable diagnoses submitted by its "medical detectives," along with their explanations. Patients are asked to give those suggestions to their physicians for consideration. Once it's confirmed that the suggestions were helpful, the patients are refunded their $50 deposit and the detective who made the correct diagnosis gets his or her reward.