This paper presents the most accurate empirical study to date to characterize and quantify the amount of content of various types that is transferred worldwide using BitTorrent, the dominant peer-to-peer (P2P) file sharing application. Using data we collected from the largest public BitTorrent...

Although electronic commerce is currently a relatively small fraction of overall sales, the dollar amounts are significant and growing rapidly. Future growth, however, is likely to be limited by two factors - technical barriers and issues of trust and risk. Technical barriers such as delivery,...