Write emails in Markdown and render them with Markdown Here!

Adam Pritchard has released a nice Browser Plugin that allows you to write Markdown in text fields then render it. From the About page:

I created Markdown Here when I realized that I was having much more fun writing README files in Markdown than I was writing email — especially if the email contained any significant structure or code snippets.

Current Browsers that support markdown here can be seen on the Get it! page:

• Chrome/Chromium
• Firefox/Pale moon
• Safari (as of May 19, 2013)
• Thunderbird, Postbox, Icedove (email clients)

You can view the project website or view the source on GitHub.