A portable electronic device includes a display, a user input device, and a controller that is coupled to the display and the user input device, and that is configured to execute an application program. The device further includes 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.