Abstract: A system is described for associating a media file with an identifier. An identifier may be encoded as a physical and/or virtual label which may be affixed to a physical object and/or incorporated into an electronic document. When a request is received which comprises the identifier, a response in the form of a media file may be delivered. Access privileges associated with a request may be determined based on criteria such as elements of the label, membership in a group of labels, a target object type, geographic data and/or sensor data included in a request.