NotePlan - Make plans inside an individual markdown note for every day in your calendar. Use it as a journal for your daily tasks and plan todos in advance. For Mac, iPhone and iPad.
Gource - Gource is a software version control visualization tool.
Markdown to PDF - Super simple way to get your markdown files to PDF
Octohunt - Search to find developers in your city on Github.
UnMarkDocs - Unleash the Power of Markdown to Write Better Product Documentation
The GitHub Matrix Screensaver - Latest commits from GitHub visualized Matrix-style