1. Content Distribution Network (CDN)
There are large and popular Web servers, such as CNN.com and msnbc.com, which need to improve performance and scalability.
Let’s imagine that there is a Web server in Cambridge, London. And one client in W&M try to access some content.
Later on, a nearby client from U of Virginia try to access similar content, then directly served from the CDN server.
(UGA, and GIT), U Tennessee
So, the CDN reduces the latency for the client, reduces the b/w for Web servers, and improve the scalability and availability for the Web content server. And it helps the Internet as a whole by reducing the long-haul traffic.

2. Adaptive Streaming Media on P2P Systems
Stanford
UC San Diego
UC Berkeley X
HP Labs
Implemented with Winamp client and SHOUTcast server
Congestion introduced with a Packet Shaper
Skip-free playback: server buffering and rewinding
Total adaptation time < 4 seconds

3. Adaptive Streaming Media Architecture
This slide show how the application interact with the monitoring service by having a “path management” layer b/t the app and the tcp layer that set up the overlay path for overlay transmission.