Himabindu Pucha Sabyasachi Roy Y. Charlie Hu "Take One Get One Free": Leveraging P2P Networks for Content Promotion. 2006 conf/infocom/2006 INFOCOM http://dx.doi.org/10.1109/INFOCOM.2006.46 db/conf/infocom/infocom2006.html#PuchaRH06