Abstract: A system for notifying users of announcements concerning activities of interest using a plurality of hailing devices. The apparatus includes a central computer, a plurality of hailing devices, a transmitter for sending messages from the central computer to any hailing device, an activity database and a notification list associating hailing devices with activities. The method includes associating a hailing device with each user, maintaining the notification list, and monitoring the activity database for announcements concerning the activities. When an announcement is detected fro a monitored activity, the system searches the notification list for all relevant entries, determines the affected hailing devices associated with the monitored activity; and sends a notification message to the affected hailing devices. Each affected hailing device alerts the user of the notification message, and enables the user to perceive the notification message.