----------------------------Original message---------------------------- I tried to get communication (network) peoples interested to compile such type of 'communication' maps... but soon I felt a lot of troubles to get the right one data sets... network traffic, lines, nodes, relays, gateways etc.. The peoples from w/German research network at Berlin/Bonn where not very cooperative when this question had been raised up... but such new map types are in progress... F.Hoffmann, DD