I'd love to see some of the code behind these maps. Are they rendered with mapnik? How practical would it be to make some of them live and interactive? Especially now we have vector graphics in the browser.
I really should clean up the source code and release most of it. The toolchain for most of them is kind of ridiculous: giant flat text files feeding through Unix pipelines and Perl scripts into PostScript files and Ghostscript. A lot of them would be better if they were interactive in the browser but I need to do the work to make it happen.
Wow, that sounds quite scary. I'd love it if you did release the source though, it'd be a great project for me to build an interactive version. (Whether or not it would get further than any of my other side projects is another matter :) Anyway, my email is in my profile and I'd be very interested if you did release something.