sh-httpd is a shell script-based Web server that supports GET and HEAD methods, and a CGI 1.1 interface. It's not real fast, and it's probably not real secure, but it is really small. The Web server and it's configuration files are around 9,000 bytes total, and that's with comments and pretty whitespace. If you can run ash or bash, an inetd, and about 7 standard external commands on your system, you can have a Web server with CGI support. There's also a timeout counter that kills never-ending CGI programs, cleans up, and exits.
mod_ntlm is a NTLM authentication module for Apache / Unix. NTLM is often used in Microsoft based Intranets to pass user's credentials from their workstation-logon to the web server (user authentication without password boxes). Password validation is done through Windows NT or Samba machines over TCP/IP.
mod_sequester is a module for the Apache Web server 1.3 which allows you to control access to Web documents according to the date and time of the request. It provides four basic ways to control access: allow until time t, allow after time t, allow between times t and t', and allow except between times t and t'. It is useful for controlling access to time-sensitive things like press releases (disallow until after), special offers (allow until), or windowed 'this week only' opportunities (allow between).
mod_atrack adds advanced user tracking functionality to the Apache Web server. It was based on mod_usertrack and introduces many new configuration features primarily designed to reduce the annoyance of sending multiple cookies to a single user and allow more intelligent analysis of collected data.
MaxiWeb is a toolkit that helps you build standalone self-launching Web server applications. The toolkit includes example programs, a C++ class library, an Active Server Page compiler, and various command line tools. Programs built with the MaxiWeb toolkit can take the place of larger Web servers such as Netscape Server, Apache, and Microsoft IIS. Using the Active Server Page (C++ ASP) compiler and 5 lines of C++ code, you can Web enable your new or existing application in just minutes. Complete MaxiWeb enabled applications can be as small as 60K.
LeanWeb is a tool for removing user-defined parts from Web pages. It works as a HTTP proxy, as such can be combined with other proxies, and runs on the same platforms as Junkbuster (i.e. Unix and Win32). LeanWeb is mainly intended for users of handheld devices who want to view Web pages without having to scroll through all the unnecessary clutter present on modern Web pages, but can also be used to customize frequently visited Web pages.
fhttpd is an FTP/HTTP server with modules support. Modules run as separate "looping" processes locally or remotely, and can be configured to run under separate userids. Locally running modules can be configured to use fd passing of client's connection to avoid overhead in sending the response. ~username URL to directory remapping is supported in HTTP, and can be configured to access files, run scripts and modules under mapped user's userid.