Using biosensors for sharing emotions via a data network service

Mobile electronic communication devices upload input data to a server via a data network. The data uploaded per device is indicative of a physiological or emotional state of the device's user, and of the user's geographical location. The server generates output data per individual user under combined control of the emotional state and geographic location of the individual user. The output data associated with multiple users is rendered as graphical symbols at one or more display monitors, thus being indicative of the geographical distribution of emotions of the population of users.