A method of operating a map server comprising: receiving, from an affiliated entity server, localized environment information, storing the localized environment information in an editable form as map information corresponding to a particular localized environment and associating the map information corresponding to the particular localized environment with a particular location context identifier, the particular localized environment comprising an indoor environment corresponding to at least a portion of a building structure, and wherein the particular location context identifier comprises a handle to access information associated with the particular localized environment; receiving, from at least one mobile device located in the particular localized environment, a request for a location context identifier, wherein each request includes information received by the mobile device from one or more local transmitters associated with the particular localized environment, wherein the information is a medium access control identifier of the local transmitter and/or received signal strength indications of signals received from the local transmitter; providing to said at least one mobile device, in response to the request, the particular location context identifier and map information for the particular localized environment; receiving, from said at least one mobile device, update information applicable to the map information corresponding to the particular localized environment, the update information being associated with the particular location context identifier of the particular localized environment, wherein the update information is associated with at least one incident that apparently conflicts with the map information; updating the map information corresponding to the particular localized environment based at least partly on the update information so as to produce updated map information; and providing the updated map information to one or more mobile devices that are located at the particular localized environment. receiving, from an affiliated entity server, localized environment information, storing the localized environment information in an editable form as map information corresponding to a particular localized environment and associating the map information corresponding to the particular localized environment with a particular location context identifier, the particular localized environment comprising an indoor environment corresponding to at least a portion of a building structure, and wherein the particular location context identifier comprises a handle to access information associated with the particular localized environment; receiving, from at least one mobile device located in the particular localized environment, a request for a location context identifier, wherein each request includes information received by the mobile device from one or more local transmitters associated with the particular localized environment, wherein the information is a medium access control identifier of the local transmitter and/or received signal strength indications of signals received from the local transmitter; providing to said at least one mobile device, in response to the request, the particular location context identifier and map information for the particular localized environment; receiving, from said at least one mobile device, update information applicable to the map information corresponding to the particular localized environment, the update information being associated with the particular location context identifier of the particular localized environment, wherein the update information is associated with at least one incident that apparently conflicts with the map information; updating the map information corresponding to the particular localized environment based at least partly on the update information so as to produce updated map information; and providing the updated map information to one or more mobile devices that are located at the particular localized environment.