1 Currently, internet packets are routed without regard to what they’re carrying, and many “major” sites like barnesandnoble.com have just one internet address ( just as artcontext.com has one ( This situation is changing, however. The forthcoming IPV6 (“[Internet Protocol version 6] has a built in charge back mechanisms to bill for traffic”, Network World, March 1, 1999), Virtual Private Networks, Service Level Agreements (ensuring guaranteed service levels), and MPLS (Multi-protocol Label Switching, which will enable pay-services [eg. movie delivery] to get higher priority in routing of data over the internet), all combine to paint a very different looking future for what was potentially an unhierarchical network.