1. An electronic device comprising: a display; a user input device; a controller that is coupled to the display and the user input device, and that is configured to execute an application program; and a user input management unit that is configured to receive an input string of characters from the user input device, configured to retrieve a bookmark list containing content identifiers that have been pre-stored by a user, configured to compare the input string to the content identifiers in the bookmark list, and configured to display a selection list on the display including a subset of the content identifiers in the bookmark list that match the input string; wherein the user input management unit is further configured to generate, in response to the input string not being in any of the content identifiers in the bookmark list, a correlation metric indicative of how closely the input string matches each content identifier in the bookmark list and to display the content identifiers that most closely match the input string in the selection list.