Swarmcast works by breaking a file into lots of little packets, distributing those packets around to computers that have downloaded the file, and randomly requesting those packets from whoever has them. The result is a mesh of packets, which, with a large number of users, can be downloaded in parallel for superfast downloads.
Early reports are extremely encouraging.
130 GB of data. An interview with Freenet creator Ian Clarke about Uprizer's approach to speeding downloads with Freenet concepts. The Transient Web. In the Clip2 Report, Kelly Truelove describes the webby nature of the Gnutella file-sharing network. ColdFusion 5 the fastest way to assemble content publishing systems, business intelligence solutions, and self-service applications.