Computer Markup Languages

• DocBook
• HTML
• SGML
• SMIL

• SVG@
• XHTML
• XML

• Computers: Programming: Languages 

• Electronic Documents Markup  - Explains details on the history and classifications of markup languages.
• MarkdownPad  - Full-featured text to HTML conversion tool and Markdown editor for Windows.
• Microformats  - Presents information on the latest microformats news updates, implementations and discussions.
• Project Xanadu  - Contains details on the project’s history, document model and its application on the browser.
• YAML.org: Markup Language  - Makes a readable data serialization language. Contains details on the product, downloadable files and FAQs.