The invention disclosed is a path optimizer for Peer to Peer (P2P) networks. Large amounts of P2P file exchanges increase the costs to maintain a network. Network service providers typically pay for the amount of data they exchange with other network service providers. The present invention examines...http://www.google.es/patents/US7571251?utm_source=gb-gplus-sharePatente US7571251 - Path optimizer for peer to peer networks