1. A system comprising a plurality of devices, each device comprising hardware including memory and at least one processor, each device configured to run at least one content delivery (CD) service of a plurality of CD services, wherein said CD services are selected from the services comprising: rendezvous services, collector services, reducer services, control services, and delivery services; and wherein (A) at least some of said devices run collector services, and at least some of said devices run reducer services, and at least some of said devices run control services, and wherein (B) said at least some of said devices running reducer services comprise a reducer services network, and said at least some of said devices running collector services comprise a collector services network; and (C) at least some of said CD services produce event output relating to their respective operation; and wherein (D) at least some of said event output from at least some of said CD services is provided to said reducer services network; and wherein (E) at least some of said reducer services in said reducer services network provide event output to at least some collector services in said collector services network, said event output being based on event input to said reducer services network from said CD services; and wherein (F) said collector services network provides state information to said control services, said state information being based on said event input from said reducer services network; and wherein (G) at least some of said control services provide control information to said CD services, at least some of said control information being based on state information from the collector services network; and wherein (H) at least some of said CD services obtain control information from said control services and are controlled and configured based on the control information received from said control services, wherein at least some of the control information used to control and configure the CD services is based on specific event information produced by at least one of said plurality of CD services; and wherein (I) at least some of said CD services obtain state information, from said collector services network and are controlled and configured based on the state information received from said collector services network; and wherein (J) each particular device of said plurality of devices is configured to run an adaptation service, said adaptation service being a CD service, said adaptation service on each particular device being configured to configure and control CD services on said particular device in response to service configuration information provided by said control services.