All of the links should be in the Internet Archive. (I wrote OP and the links would've been included in my archive queue at the time.)
FWIW, as much as I liked the idea of Chernoff faces after running into them in _Blindsight_, I was never able to find a productive use for them where they were really all that much a better visualization than, say, a bunch of scatterplots or fancier techniques like t-SNE.
