77. The method of claim 76 , comprising determining a grouping an item of content received from a said node in accord with any of (a) a user designation, (b) supplementary information for that item of content, and (c) content of that item.
79. The method of claim 77 , wherein step (B) include transmitting a said item of content, along with at least some of the respective supplementary information, to a said node.