15. A system for document internal localization comprising: a user-positionable optical input device for capturing a local image of a user-observed region of a hardcopy document; a processing component which determines a location of the observed region within the document by matching the captured image of the region with a corresponding region of an electronically stored version of the hardcopy document, the hardcopy document and electronically stored version of the document including machine readable disambiguating information whereby a region is distinguished from similar regions within the document, the disambiguating information being localized in regions of the document which are not distinguishable without the disambiguating information.
16. In combination, An an article of manufacture for obtaining automatic actions through a network, and the system of claim 15 , the article of manufacture comprising: print medium; visually recognizable machine-readable markings on the print medium; and visually unobtrusive machine readable markings localized in regions of the print medium which are indistinguishable from other regions by the visually recognizable machine-readable markings alone, the visually unobtrusive machine readable markings being absent from at least some regions which are distinguishable by the visually recognizable machine-readable markings alone, the visually recognizable markings combining with the visually unobtrusive markings to render regions that are associated with an automatic action distinguishable from other regions that are associated with a respective automatic action, whereby the processing component associates a region of the article observed by the optical input device with a location identifier, the action device providing the action automatically in response to the location identifier.