A method and system for keying media allows for the distribution of updateable content to an end user. The media are any type of processor readable, portable apparatus containing a preinstalled Keying Application and unique Source ID. A particular medium is provided to an end user and the end user runs the Keying Application on a network-connected electronic device, such as a computer or PDA. The Keying Application interacts with a Content Server via the network connection. The end user also interacts with the Content Server via the Keying Application. Through these interactions, the Content Server distributes specific updateable content to the Keying Application, which displays the specific content to the end user. The content may comprise catalog and directory information.