Ready to be published? LXer is read by around 350,000 individuals each month, and is an excellent place for you to publish your ideas, thoughts, reviews, complaints, etc. Do you have something to say to the Linux community?
Marker is a free and open source GTK3 Markdown editor designed with the Gnome desktop in mind. While the application is still in early development, it already includes most of the things you'd need in a Markdown editor.