Common Lisp web server formerly known as TBNL

 Hunchentoot is a web server written in Common Lisp and at the same time a
 toolkit for building dynamic websites. As a stand-alone web server,
 Hunchentoot is capable of HTTP/1.1 chunking (both directions), persistent
 connections (keep-alive), and SSL.
 .
 Hunchentoot provides facilities like automatic session handling (with and
 without cookies), logging, customizable error handling, and easy access to
 GET and POST parameters sent by the client. It does not include
 functionality to programmatically generate HTML output. For this task you
 can use any library you like, e.g. (shameless self-plug) CL-WHO or
 HTML-TEMPLATE.
 .
 Hunchentoot talks with its front-end or with the client over TCP/IP sockets
 and optionally uses multiprocessing to handle several requests at the same
 time. Therefore, it cannot be implemented completely in portable Common
 Lisp. It currently works "natively" with LispWorks (which is the main
 development and testing platform), and additionally on all Lisps which are
 supported by the compatibility layers usocket and Bordeaux Threads.
 .
 Hunchentoot comes with a BSD-style license so you can basically do with it
 whatever you want.