13. The method of claim 5 wherein at least some of said keywords are associated with data indicating multiple locations defined with respect to a geographic database.
5. A method of facilitating specification of locations by end users for obtaining navigation-related or map-related features, the method comprising the steps of: with an on-line keyword program accessible to a first end user in a geographic region, accepting keyword registration requests from the first end user to register keywords, wherein each keyword is an alphanumeric word, string, or phrase, and further wherein the on-line keyword registration program is also operable to allow the first end user registering a keyword to associate a physical location in the geographic region and a user-provided instruction to facilitate routing to the physical location with the keyword; maintaining a keyword database that associates the keywords with data indicating the respective physical locations and instructions associated therewith by the first end user; and making the keyword database accessible on-line so that a second end user in the geographic region can use keywords registered by the first end user to specify locations in the geographic region and to receive the associated instruction.