"This project provides a converter written in Python that closely matches the behaviour of the original Perl-implemented Markdown.pl. There is another Python markdown.py (see link at right), but markdown2.py is faster"
"Pandoc converts files from one markup format to another. It can read markdown and (subsets of) reStructuredText, HTML, and LaTeX, and it can write markdown, reStructuredText, HTML, LaTeX, ConTeXt, groff man, RTF, DocBook XML, and S5 HTML slide shows."
"I write everything on this site in emacs of course. I finally got around to organizing the myriad Emacs Lisp hacks I use into a common file: presenting posts.el."