Samizdat is a generic RDF-based engine for building collaboration and open publishing Web sites. It provides users with the means to cooperate and coordinate on all kinds of activities, including media activism, resource sharing, education and research, advocacy, and so on. It intends to promote values of freedom, openness, equality, and cooperation.
Websitary is a script that monitors Web pages, RSS feeds, and podcasts and reports what's new. For many tasks, it reuses other programs (such as w3m, diff, and webdiff) to do the actual work. By default, it works on an ASCII basis, i.e. with the output of text-based Web browsers. With the help of some friends, it can also work with HTML.
deplate converts wiki-like markup to LaTeX (standard classes, koma, dramatist, sweave), HTML/PHP (single page, chunked/website, HTML, or s5-based slideshow), DocBook (article, book, man/ref page), and really plain text. Currently supported input formats are viki and Ruby's rdoc. The viki markup supports footnotes, citations, index, table of contents, embedded LaTeX for mathematics, integration with R for dynamically generated figures and tables, and more. Output can be customized via page templates.
ccollaborate is a CMS framework with support for all programming languages. It aims to be easy to use, program, administrate, and understand. The content can be edited both in command line programs (such as vi) and via a Web-based interface. Modules may be reinstantiated. Files may be uploaded via standard methods (such as sftp, scp, and rsync). All programming languages may be used with ccollaborate.
Rextile allows you to build XHTML documents and entire Web sites with ease. You write text using Textile (a format much more concise than XHTML), automate document parts with Ruby scripting, and generate the site offline (the server gets static XHTML). Rextile was inspired by Xilize. It uses RedCloth to convert Textile to XHTML, erb to run script blocks, and Hpricot for DOM manipulation.