Embodiments of a distributed instant messaging system that uses {HEAD ~ a distributed index} in {TAIL ~ peer} to peer networks 
Embodiments of a distributed instant messaging system that uses { HEAD ~ a distributed index } in { TAIL ~ peer } to peer networks
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH