Given the Active Names framework described above, this section demonstrates the power of three key Active Name principles: extensibility, location independence, and composibility. First, we describe how Active Names support flexible end-to-end bindings between clients and replicated Internet services. Next, we show how Active Name filters are dynamically allocated to strategic wide-area locations to maximize client performance, and reduce consumed wide-area bandwidth and server load. Finally, we demonstrate the generality of the system by showing how individual Active Name extensions are composed together to provide significant performance benefits over any individual extension.