Electronic Documents Markup « http://web.cs.wpi.edu/~kal/elecdoc/EDmarkup.html | | A brief explanation of what markup languages are and where they come from. |
Microformats « http://microformats.org/ | | Simple data formats built upon existing and widely adopted standards. overview , specifications , events , and discussion. |
Project Xanadu « http://www.xanadu.com/ | | The original hypertext project. includes a history of the project and gives credit to the early developers of markup languages. |
whatis. com: markup « http://whatis.techtarget.com/definition/0,289893,sid9_gci212527,00.html | | A short definition. |
YAML Ain't Markup Language (YAML) « http://yaml.org/ | | A straightforward machine parsable data serialization format designed for human readability and interaction with scripting languages such as perl and python. |