1. A computer-implemented method, the method comprising: presenting to a user a set of computer-generated driving directions including a plurality of maneuvers; in association with presenting to the user the set of driving directions, presenting to the user an option to submit an annotation for one of the plurality of maneuvers; in response to presenting the option to the user, receiving the annotation from the user and storing the user-submitted annotation in association with an identification of the one of the plurality of maneuvers; determining a reliability of the user-submitted annotation based on feedback from other users who have used directions that included the user-submitted annotation; and augmenting, based on the determined reliability of the user-submitted annotation, the one of the plurality of maneuvers with the user-submitted annotation.