Under one aspect, an interface program stored on a computer-readable medium causes a computer system with a display device to perform the functions of: accepting search criteria from a user, the search criteria including a domain identifier identifying a domain and a free text query entry; in response to accepting said search criteria from the user, receiving a set of document-location tuples from a corpus of documents, wherein each document: (a) contains information that is responsive to the free text query entry; and (b) contains location-related information that refers to a location within the domain; requesting and receiving a result from an additional query based at least in part on the domain identifier, the result not being a document-location tuple; and displaying a visual representation of at least a subset of the document-location tuples and a visual representation of the result of the additional query on the display device.