Abstract: A system, method and computer readable medium configured to determine whether an initial electronic advertisement has been displayed, and to deliver an alternate advertisement when the initial electronic advertisement has not been displayed.

Abstract: A system, method and computer readable medium configured to track Internet users as they browse web-sites when cookies are disabled or deleted. One aspect of the present invention includes the realization that cookies are not adequate to track Internet web users as cookies are limited and size, and easily deleted by users. A web-site receives a request for content from the computing-device. After obtaining information about the computing-device, the tracking-server assesses the request for content from the computing-device. If the computing-device has an available flash plug-in, the tracking-server transmits a flash applet to the computing-device. The flash applet is configured to: determine whether a unique flash identifier has been assigned to the computing-device, generate the unique flash identifier if no unique flash identifier has already been assigned to the computing-device, transmit the unique flash identifier to a tracking server, and store the unique flash identifier in local flash storage.