CL-WHO is yet another specimen of the Lisp Markup Languages
category, that is, it's a Web library
to create (X)HTML from S-expressions. If you've seen one, you've seen them all... :)
This one's by Edi Weitz and is at http://weitz.de/cl-who/.
ASDF-install package (obsolete) http://weitz.de/files/cl-who.tar.gz