I have finally updated the HTTP Developer's Handbook companion Web site to reflect the new cover.
The fun was in reorganizing the site. I decided to use the "clean URLs" approach,
so I am using a combination of Apache's
$_SERVER['PATH_INFO'], and some intelligent protocol-level redirects via
header() to correctly point all old URLs to their new home as well as guess where visitors intend to be going in the case of typos and the like.
While working on this, I realized how helpful a short article about this could be, so I might add that to my TODO list.