It is clear that modern information technology is having a profound impact on the way researchers and clinicians exchange information. Use of the Internet is one example of how such change can be translated into scientific progress and improved patient care. Androlog, a moderated international information exchange, has proven to be very useful in the transfer of information pertaining to the study and treatment of male reproductive disorders. Allowing instantaneous dispersal of messages to members in 27 countries, this system has become a valuable source of scientific information, as well as an excellent forum for the discussion of a broad range of clinical and laboratory topics. Moderated-user groups such as Androlog are highly applicable to many other areas of urology. Establishment of such an information exchange requires only a modest investment in computer hardware and software and moderators who are willing to perform the necessary tasks of system administration and message review. Given the unique advantages provided by this method of communication, there is little doubt that systems such as Androlog will flourish in the future, providing a valuable tool in the advance of medical science.