Browser Valnce Where ???

Was tryin the other day to find again this awesome web-browser "valence", but link is dead and it's now nowhere to be found ???

Valence was a browser makin visible connections between website and such, really awesome for watch what's the focus of a website.

No one have infos about what happenend ???
Any info will be greatly appreciate !

original link: http://acg.media.mit.edu/people/fry/valence/index.html