Driftnet: One of the funnest ways to watch your userland web traffic with no text!

Excerpt from the page:

"Inspired by EtherPEG [...], Driftnet is a program which listens to network traffic and picks out images from TCP streams it observes. Fun to run on a host which sees lots of web traffic.

In an experimental enhancement, driftnet now picks out MPEG audio streams from network traffic and tries to play them. You can also now use driftnet with Jamie Zawinski's webcollage, so that it can run as a screen saver."

While a bit limited in the method it logs for saving the images, it's a nice way to keep an eye on image based traffic < and mpeg streams Wink >.