In case anyone is really interested in contributing to this site (and I would really appreciate any such help), I've uploaded an xml file (zipped) which contains the data from which the site is generated - http://www.bevin.de/usa/facts.zip
. I'll try to keep the file up-to-date whenever I make changes.
The format of the file is really simple (if you're not sure what an 'xml' file is, its a text file similar to html, but with different tags designed for the specific task at hand), and it should be obvious how to make changes / add new topics etc etc.
If anyone is interested in adding any new topics/subtopics they think belong here, or making corrections/additions to existing topics, please feel free to download this, edit it, and then e-mail it to me (btw, my e-mail address is firstname.lastname@example.org