SAX
Computers, Data Formats, Markup Languages, XML - SAX. Official website for SAX, the Simple API for XML, project resources include archived mailing lists, SAX evolution and a download area.
https://sax.sourceforge.net/
X-Smiles.org
Computers, Data Formats, Markup Languages, XML - X-Smiles.org. Browser that features an implementation of SMIL 2.
http://www.x-smiles.org/
SourceForge: SGML-tools Lite
Computers, Data Formats, Markup Languages, SGML - SGMLtools-Lite. Formerly Linuxdoc-SGML, SGMLtools offers a out-of-the-box SGML processing solution for technical (DocBook) documentation.
https://sgmltools-lite.sourceforge.net/
Draac.Com - Building A Better Internet
Computers, Data Formats, Markup Languages, HTML - Draac.com Building a Better Internet. Features an easy to follow approach to learning HTML for use in email and webpages.
http://www.draac.com/
HTML for Rookies
Computers, Data Formats, Markup Languages, HTML - HTML for Rookies. Features easy to follow tutorials covering the basic HTML tags.
http://htmlprimer.com/
Html Tips and Tricks
Computers, Data Formats, Markup Languages, HTML - Html Tips and Tricks. Stylesheets, forms, fading, background colour and sound, bullets, aligning text, hit counter, marquees, Java dialog boxes, and preventing browsers from caching.
http://htmltips.blogspot.com/
Notepad's Web Design - A Good Place to Start Learning HTML
Computers, Data Formats, Markup Languages, HTML - Notepad's Web Design - A Good Place to Start Learning HTML. Basic tags, colour codes, email url, fonts, tables, frames, forms, scripts, and some article on general web design.
https://notepad.com/
onlyhtml.com
Computers, Data Formats, Markup Languages, HTML - Only HTML. Editors, style guidelines, frames, and tables.
http://onlyhtml.com