1. A method of associating a first electronic document with a second electronic document comprising: having a first physical paper identifier having a device readable coding, which codes for an identifier for said first electronic document, and; reading said coding of said first electronic document with a device, to acquire information enabling said identity of said first electronic document to be established, and; communicating that identity to a computer processor, and; detecting a user gesture associating the identified first electronic document with the second electronic document, wherein the user gesture includes a user linking marker gesture performed with the device on at least a portion of a hardcopy of the identified first electronic document and on at least a portion of a hardcopy of the second electronic document; and using said processor to associate said identified first electronic document with said second electronic document in response to the detected user gesture, wherein the associating includes the processor interpreting the user gesture on the hardcopies as instructions to link the first and second electronic documents.
1. A method of associating a first electronic document with a second electronic document comprising: having a first physical paper identifier having a device readable coding, which codes for an identifier for said first electronic document, and; reading said coding of said first electronic document with a device, to acquire information enabling said identity of said first electronic document to be established, and; communicating that identity to a computer processor, and; detecting a user gesture associating the identified first electronic document with the second electronic document, wherein the user gesture includes a user linking marker gesture performed with the device on at least a portion of a hardcopy of the identified first electronic document and on at least a portion of a hardcopy of the second electronic document; and using said processor to associate said identified first electronic document with said second electronic document in response to the detected user gesture, wherein the associating includes the processor interpreting the user gesture on the hardcopies as instructions to link the first and second electronic documents. 6. A method according to claim 1 wherein at least one of said first and said second physical identifier comprises a printed and/or digital pen-written paper document having human discernable content equivalent to at least part of the respective one of said first and second electronic documents, the printed document being one or more of the hardcopies.