The ability to specify or reserve the services one needs from the network will in turn require mechanisms for accounting and pricing (else there is no incentive not to reserve all one can or not to use the highest priority). Many fear pricing will stifle the open, vibrant nature of the Internet community; we suggest that it may rather motivate the constructive exploration of more efficient network implementation of innovative networking applications over the Internet. Understanding the possibilities for resource accounting will also aid commercial network providers in the process of setting cost functions for network services.