things that make you go hmmm. Mesh-Based Content Routing using XML
“We have developed a new approach for reliably multicasting time-critical data to heterogeneous clients over mesh-based overlay networks. To facilitate intelligent content pruning, data streams are comprised of a sequence of XML packets and forwarded by application-level XML routers. XML routers perform content-based routing of individual XML packets to other routers or clients based upon queries that describe the information needs of down-stream nodes. Our PC-based XML router prototype can route an 18 Mbit per second XML stream.”