From the site:
"Electric Sheep is a free, open source screen saver run by thousands of people all over the world. It can be installed on any ordinary PC or Mac. When these computers "sleep", the screen saver comes on and the computers communicate with each other by the internet to share the work of creating morphing abstract animations known as "sheep"."
I'd compare it to the likes of the itunes visualizer, except this one doesn't look like shit. And be patient, as it takes a while to communicate to other computers. Well worth the wait.
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