In a method of generating a diagnosis of a medical condition, a list of symptoms is received at a server from a patient computer. The list of symptoms is presented to a plurality of participants. A list of diagnoses corresponding to the list of symptoms is presented to the plurality of participants. An input is received from each of the plurality of participants in which the input indicates a likelihood of each of the potential diagnoses being correct. The input from each of the plurality of participants is averaged, thereby generating a ranking of the potential diagnoses from highest likelihood of being correct to lowest likelihood of being correct, which is transmitted to the patient. An indication of which diagnosis was found to be correct is received from the patient. A reward is paid to each participant based on how likely the participant indicated that the correct diagnosis was correct.