Providing a website on a global computer network featuring medical, drug, and health information, namely, diagnostic advice, symptoms, conditions, treatment, prevention, medical news, tips and advice on health topics, health risks, nutrition, and immunization; providing on-line messaging among computer users concerning health and medical information; transmission of secure messaging between doctors, nurses, medical staff, patients, and other computer users; providing on-line transmission of medical and insurance records; providing business administration features, clinical research data collection and archiving capabilities, disease management and health maintenance features, and patient web-based scheduling-communication features