I've chosen a minimalist approach and the focus was on
readability - although the white background doesn't help much, I
couldn't find a better solution. The content for the homepage is drawn
from users comments on this thread (they are merely illustrative,
although make sense to me).
Most modifications were done to chicken.css file, so
changes are immediately applicable to probably 90% of CHICKEN site
(exceptions are
api.call-cc.org and
bugs.call-cc.org).
To make the page "responsive" to narrow screens (i.e. mobiles) we would
need to add one line of HTML into pages. This line is already inserted
in the .html files on the
https://dl.dropboxusercontent.com/u/621606/chicken-web-page/chicken-web-page.tar.gz bundle. It contains many .html files and I recommend opening "CHICKEN Scheme.html" first. The menu on this page has some directly browsable links ("Get started!" link at the bottom can also be clicked).