1. A computer-implemented method, comprising: receiving a first instance of digital media, the first instance of digital media including location and time data for the first instance of digital media; receiving a second instance of digital media, the second instance of digital media including location and time data for the second instance of digital media; clustering the first instance of digital media and the second instance of digital media into an event-related group of digital media for an event based at least in part on the location and time data for the first instance of digital media and on the location and time data for the second instance of digital media; receiving an indication of a selection of a media-sharing setting from among a plurality of available media-sharing settings; determining a set of one or more recipients for the event-related group of digital media based at least in part on the indication of the selection; outputting the event-related group of digital media in a presentation for viewing by the set of one or more recipients; receiving a third instance of digital media, the third instance of digital media including location and time data for the third instance of digital media; clustering the third instance of digital media into the event-related group of digital media for the event based at least in part on the location and time data for the first instance of digital media, the location and time data for the second instance of digital media, and the location and time data for the third instance of digital media; updating the presentation with the third instance of digital media to produce an updated presentation; and outputting data for the updated presentation so that the updated presentation of the event-related group of digital media is available for viewing by the set of one or more recipients, the updated presentation including the third instance of digital media, the clustering the third instance of digital media into the event-related group of digital media, the updating the presentation with the third instance of digital media, and the outputting data for the updated presentation being performed automatically without user input upon the third instance of digital media being received.