17. A multimedia content sharing system, comprising A. a shared content server storing a plurality of items of content, where the stored items of content are any of still images, moving images and audio, B. a plurality of nodes, each in communication coupling with the shared content server via one or more networks, C. the shared content server transmitting, via the one or more networks, one or more of the plurality of items of content stored on the server to each node in a first set of said nodes without a request by any user of that node for such item, wherein each node in the first set of said nodes stores the one or more of the plurality of items in a local store associated therewith D. at least one said node (“first peer node”) in the first set of nodes, (i) presenting any of visually and/or aurally the content of at least one item of content received from the shared content server, (ii) accepting user feedback with respect to that item of content, the user feedback reflecting user input regarding the item of content, and (iii) transmitting that user feedback to the shared content server, E. the shared content server transmitting the user feedback to at least one other node (“second peer node”) that is in the first set of nodes without retransmission of the article of content with respect to which the user feedback was accepted, which second peer node alters a presentation on that node of that item of content as stored on the local store associated therewith based on that user feedback.
17. A multimedia content sharing system, comprising A. a shared content server storing a plurality of items of content, where the stored items of content are any of still images, moving images and audio, B. a plurality of nodes, each in communication coupling with the shared content server via one or more networks, C. the shared content server transmitting, via the one or more networks, one or more of the plurality of items of content stored on the server to each node in a first set of said nodes without a request by any user of that node for such item, wherein each node in the first set of said nodes stores the one or more of the plurality of items in a local store associated therewith D. at least one said node (“first peer node”) in the first set of nodes, (i) presenting any of visually and/or aurally the content of at least one item of content received from the shared content server, (ii) accepting user feedback with respect to that item of content, the user feedback reflecting user input regarding the item of content, and (iii) transmitting that user feedback to the shared content server, E. the shared content server transmitting the user feedback to at least one other node (“second peer node”) that is in the first set of nodes without retransmission of the article of content with respect to which the user feedback was accepted, which second peer node alters a presentation on that node of that item of content as stored on the local store associated therewith based on that user feedback. 24. The system of claim 17 , wherein the first peer node responds to at least selected user interaction by forwarding an item of content to one or more other nodes.