A major website has been developed containing almost all of the information doctors require to manage any older medical patient. It caters for geriatricians, for those with an uneven, basic knowledge of geriatric medicine, and for differing international requirements. The validity and reliability of the site were assured by a specialist review board recruited from the American and British Geriatrics Societies, World Health Organisation, and the Pan American Health Organisation. This paper describes the development of the site, and outlines the planning and development process for a further web site. This will allow a doctor's practical knowledge of geriatric medicine to be assessed on-line, in an interactive educational way as a means of continued professional development.