5. A system on a mobile device for providing access to supplemental electronic materials associated with a document, the system comprising: a text capture component, wherein the text capture component includes a scanner programmed to capture a human-readable text sequence of a print version of a document, wherein the human-readable text sequence includes text that is perceptible to a human on the print version of the document; a processing component, wherein the processing component is programmed to process data from the text capture component to recognize the text; an identification component, wherein the identification component is programmed to determine, from the recognized text, a text string corresponding to the captured human-readable text sequence and identify the document using the text string; a content access component, wherein the content access component is programmed to: identify supplemental electronic materials associated with the document, the supplemental electronic materials being materials presentable using an audio or visual medium; determine that a request to access the supplemental electronic materials associated with the document is implicit in receiving the human-readable text sequence; receive a set of access rules for the supplemental electronic materials associated with the document; and resolve the request by enabling access to the supplemental electronic materials when the request satisfies the access rules or denying access to the supplemental electronic materials when the request does not satisfy the access rules, wherein resolving the request by enabling access to the supplemental electronic materials when the request satisfies the access rules includes permitting access to the supplemental electronic materials when the received human-readable text sequence includes an indication that the human-readable text sequence was captured from the print version of the document; and a content presentation component, wherein the content presentation component is programmed to present the supplemental electronic materials associated with the document to a user associated with the mobile device.
5. A system on a mobile device for providing access to supplemental electronic materials associated with a document, the system comprising: a text capture component, wherein the text capture component includes a scanner programmed to capture a human-readable text sequence of a print version of a document, wherein the human-readable text sequence includes text that is perceptible to a human on the print version of the document; a processing component, wherein the processing component is programmed to process data from the text capture component to recognize the text; an identification component, wherein the identification component is programmed to determine, from the recognized text, a text string corresponding to the captured human-readable text sequence and identify the document using the text string; a content access component, wherein the content access component is programmed to: identify supplemental electronic materials associated with the document, the supplemental electronic materials being materials presentable using an audio or visual medium; determine that a request to access the supplemental electronic materials associated with the document is implicit in receiving the human-readable text sequence; receive a set of access rules for the supplemental electronic materials associated with the document; and resolve the request by enabling access to the supplemental electronic materials when the request satisfies the access rules or denying access to the supplemental electronic materials when the request does not satisfy the access rules, wherein resolving the request by enabling access to the supplemental electronic materials when the request satisfies the access rules includes permitting access to the supplemental electronic materials when the received human-readable text sequence includes an indication that the human-readable text sequence was captured from the print version of the document; and a content presentation component, wherein the content presentation component is programmed to present the supplemental electronic materials associated with the document to a user associated with the mobile device. 7. The system of claim 5 , wherein the content presentation component is programmed to present the supplemental electronic materials associated with the document to the user via a display or speaker of the mobile device.