AOLserver
   Open-source web server by America Online, multithreaded, Tcl-enabled, massively-scalable and extensible, also features database integration and a dynamic page scripting language (ADP).
   http://aolserver.com/

AbaSioux HTTP Server
   The server supports virtual servers, CGI, SSL, and can easily be extended by writing plugins. The server binaries, documentation, and header files are freely available.
   http://public.toilet.ch/software/abasioux/index.htmx

Abyss Web Server
   A free and small personal web server for Windows and Linux supporting HTTP/1.1 and CGI. Features a remote web management interface.
   http://www.aprelium.com/abyssws/

Aestiva
   The HTML/OS product enables web designers to build advanced dynamic sites w/out CGI programming. For Unix and NT servers. ISP-friendly.
   http://www.aestiva.com

CERN httpd
   No longer maintained, but possibly of historical interest.
   http://www.w3.org/Daemon/

Center for Information Technology Integration: Webcard
   Based on a Schlumberger Cyberflex Access Java Card. Testdrive, technical report, press releases, source.
   http://www.citi.umich.edu/projects/smartcard/webcard/

Common Lisp Hypermedia Server: CL-HTTP
   A highly portable http/1. 1 server which supports cgi, server-side lisp programs, java, javascript.
   http://www.ai.mit.edu/projects/iiip/doc/cl-http/home-page.html

HTTPi
   Small-footprint server offering executables, server-parsed pages, access control and virtual hosting (perl).
   http://www.floodgap.com/httpi/

InstantServers
   Desktop Web hosting solution. Documentation and technical specifications available. [Windows]
   http://instantservers.com/

Mac Web Server and BBS
   Operator Headgap Systems is the Worldwide Distributor for TeleFinder Internet BBS and Server Software. Full documentation, ordering and update information.
   http://www.Mac-WebServer.com

Micro_httpd
   Implements all basic web server features in only 150 lines of code.
   http://www.acme.com/software/micro_httpd/

NCSA HTTPd
   No longer supported, site still includes extensive documentation.
   http://hoohoo.ncsa.uiuc.edu/

NetCloak
   Web server enhancement package that allows you to create interactive, dynamic web sites. Running as either a stand-alone CGI application or as a high-performance WebSTAR API plug-in.
   http://www.maxum.com/NetCloak/

Netcraft
   A comprehensive list of servers. Also a comprehensive survey of webserver software usage.
   http://www.netcraft.com/survey/servers.html

Netcraft: Web Server Survey
   Web tool retrieves hosting software information from any domain name.
   http://uptime.netcraft.com/

Phttpd
   Lightweight multithreaded solution. Partial documentation, free source download. [Solaris]
   http://www.theo-physik.uni-kiel.de/phttpd/

Pi3Web
   Supports CGI, FCGI, ISAPI, PHP4, SSL. Free binary or source downloads, documentation, mailing list, FAQ, screenshots. [Windows, Linux]
   http://pi3web.sourceforge.net/pi3web/

PicoWeb
   Product description, news, support pages.
   http://www.picoweb.net/

Plesk Server Administrator
   World-class, innovative new product designed to make web server management easier for everyone.
   http://www.swsoft.com/plesk

Roxen Webserver
   Web server and application server which includes support for RXML, a tag-based language for constructing dynamic content. Allows tag plugins to be written in Pike.
   http://www.roxen.com/products/webserver/

SQLData Desktop Server
   A powerful web database server that allows user to access ODBC data sources using a web browser. Now you can have your own database server with no CGI or programming.
   http://www.sqldata.com/desktop.htm

Secure Web Server for S/390
   HTTP/HTTPS server for OS/390, MVS, and VM offers fully secure web site hosting on the mainframe as well as direct dynamic web access to any 3270 application. MVS and VM fact sheet available in PDF format.
   http://www.informationbuilders.com/products/web390/

Small Web Servers
   Contains information on three projects, webACE, webACE II (very small web servers) and Spud (a potato-powered web server ).
   http://d116.com/

Tcl Web Server
   A pure-Tcl web server.
   http://tcl.activestate.com/software/tclhttpd/

The SRE-http project
   dedicated to the provision of free, WWW-aware software to the OS/2 community. Written primarily in REXX, theflagship product is the SRE-http http/1.1 server for OS/2.
   http://www.srehttp.org/

Voyager Server
   For QNX OS and/or embedded devices.
   http://www.qnx.com/products/photon/internet.html

WN
   Web server that runs on a variety of Unix platforms and is free under the terms of the GNU General Public License. Online user guide, and other documentation.
   http://hopf.math.northwestern.edu/

Web Server/400
   A native AS/400 application that takes full advantage of the latest IBM OS/400 V3R1 offerings, and provides all of the features of the most popular current Web servers.
   http://www.inetmi.com/iseries/webserver/

Xs- Httpd
   Small and fast WWW server with many features.
   http://www.stack.nl/~johans/xs-httpd/

Zeus Web Server
   The world's most scalable high performance web server software, providing solutions for content providers, ISP hosting, intranets and secure e-commerce with comprehensive support.
   http://www.zeus.com/

Zilog: EZ80 Webserver
   Overview of chip-based Z80S183 Advanced Mixed Signal System and Z80S188 Advanced Embedded Microprocessor. Technical documentation and support pages.
   http://www.zilog.com/ez80/

fhttpd
   FTP/HTTP server with modules support. Modules run as separate "looping" processes locally or remotely, and can be configured to run under separate userids.
   http://www.fhttpd.org

ghttpd
   A fast and efficient HTTP server that has CGI support (no post support, only get). Ghttpd has a small memory footprint and is capable of handling thousands of simultanious connections. GPL.
   http://gaztek.sourceforge.net/ghttpd/

kHTTPD for Linux
   An http-daemon webserver for linux. Khttpd is different from other webservers in that it runs from within the linux-kernel as a module device-driver.
   http://www.fenrus.demon.nl/