By putting the tools for media creation in the hands of the consumer, we anticipate exponential growth in the distribution and hosting of media on the Internet. We expect this growth to parallel that of HTTP traffic. We need to confront the issues related to this growth in the number of media sources and services. Significantly higher quality streaming and context-sensitive personalization of multimedia services will be key enablers of this whole technology area. Our vision differs from the delivery of video-on-demand services because we believe that there will be a vast number of sources of copyleft content. In this paper we focus on the distributed discovery of content and the concurrent, context-aware manipulation of multiple media streams.