DocBookWiki can display and edit DocBook documents online. It can display several documents at once (a list of books), and each of them can be in several languages. Editing can be done in several modes (like text/wiki, HTML, XML, etc.), but the basic format is always XML/DocBook. Each document can be automatically converted into other formats for downloading. The history of modifications is kept in SVN, and any previous versions of a document can be recovered.
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.
OpenCartable is an online tool for teachers and their students organized around textbooks and bibliographies of links to Web sites or uploaded files. The "todo" links (or resources) can be affected as works that the student answers and the teacher corrects and marks. The focus is on simplicity, with students only using three pages: their desk, textbooks, and works. Users are grouped in a school, and teachers manage their students through groups. The contents are written as standard DocBook files plus a LOM (Learning Object Metadata) schema that can be shared among OpenCartable servers using simple tools like rsync.
SilkPage is an XML-based Web publishing framework that has evolved from the Docbook Website. With strong foundations in XML, it is a publishing framework with a focus on Web standards and usability. It is particularly suited for publishing personal websites, though it is by no means limited to them.
Annotate provides an annotation facility for DocBook documents. It enables visitors to an online version of a DocBook document to add comments to any paragraph or chapter of the document. It extends the DocBook XSL stylesheets, leading to modified HTML output which contains anchors at those places where annotations can be made. Comments and notes are stored in a DBMS. A CGI program then merges the HTML document and the comments to produce the output for the visitor.
The Java Wikipedia API (Bliki engine) is a parser library for converting Wikipedia/Mediawiki syntax to HTML. It supports wiki tags for bold, italic, headers, nowiki, source, table of contents, tables, lists, categories, footnotes (references), images, syntax highlighting of source code fragments, templates, and template parser functions.