1. One or more computer-readable memory comprising computer-executable instructions for providing efficient sharing of user-generated content through a digital map, the computer-executable instructions directed to steps comprising: registering to receive user-generated content, the registering comprising a specification of a defined geographic area such that only user-generated content associated with a geographic location located within the defined geographic area will be received on account of the registering; receiving a first user-generated content and a first geographic location associated therewith; identifying at least one digital map tile on which a presence of the first user-generated content is to be indicated, the identifying comprising determining that the first user-generated content is sufficiently highly ranked, as compared to other user-generated content that is also associated with geographic locations encompassed by the identified at least one digital map tile, so as to be indicated on the identified at least one digital map tile; specifying a first location on the at least one digital map tile, corresponding to the first geographic location as represented on the at least one digital map tile, for a first indicator indicating the presence of the first user-generated content; and transmitting the identification of the at least one digital map tile and the specification of the first location on the at least one digital map tile.