A computing device is described that receives a notification generated by a notification source. The computing device selects, based at least in part on one or more notification routing rules, one or more computing devices that are to output one or more indications of the notification out of a plurality of computing devices communicably coupled to the computing device. The computing device routes the notification to the one or more computing devices for outputting the one or more indications of the notification by each of the one or more computing devices.