Sonification: The Sound of Traffic

Wired has an article about a neat little Java application called Sound of Traffic that lets you 'listen' to TCP/IP traffic.

By the way, this process of converting non-speech data into sound in order to convey information is called sonification and it is a very interesting on-going area of research, particularly for helping the vision-impaired, but also for other things such as gaining insight into or simply entertainment from networking traffic.