9. A system for managing target documents referred to by referring documents, comprising: a storage for storing one or more target documents; a processor coupled to the storage, for identifying one or more referring documents in a network, each of the one or more referring documents associated with a user of the network and having one or more hypertext links, each hypertext link pointing to a target document of the one or more target documents; wherein the processor determines when user deletes one or more referring documents associated with the user, and wherein the storage enables removal of a target document of the one or more target documents when one or more hypertext links pointing to the target document cease to exist.
9. A system for managing target documents referred to by referring documents, comprising: a storage for storing one or more target documents; a processor coupled to the storage, for identifying one or more referring documents in a network, each of the one or more referring documents associated with a user of the network and having one or more hypertext links, each hypertext link pointing to a target document of the one or more target documents; wherein the processor determines when user deletes one or more referring documents associated with the user, and wherein the storage enables removal of a target document of the one or more target documents when one or more hypertext links pointing to the target document cease to exist. 10. The system of claim 9 , wherein the one or more referring documents and the target document are stored in different storage devices coupled over a network.