G Cows - Scripting language for web content management.
Htmldoc - A document conversion and formatting utility that produces indexed HTML, PDF and PostScript files suitable for printing and on-line viewing. (C++) [GNU/Linux, Unix, Windows]
MkGallery - Generates an image gallery with thumbnails for the Internet. All pages are HTML 4.0 and CSS compatible. (Shell script) [GNU/Linux]
MyEasyMarket - Shopping application for electronic markets (PHP).
Open Site Builder Tools - Compiles website from predefined template and content files, generates sitemap, has development log analyzer and smart ftp uploader. (PHP) [OS Independent]
PageJumper - Seamless page redirection, which works well with search engines and with browser's back button. (JavaScript)
phpMember - Allows you to easily include a membership system into your Web site. (PHP3)
txt2html - Converts plain text to HTML, supporting headings, lists, simple character markup, and hyperlinking. (Perl)
Typo3 - A system designed to manage form and content of websites. (JavaScript, PHP, Perl)
Webber - An environment for producing and maintaning the contents and metadata of Web pages. (Perl)