- [Markdown Tree](https://github.com/mil/markdown-tree) - Serve a Hierarchy of Markdown files simply (like mksite or other site generators, only dynamic)
- [Fracture.it](http://fracture.it) URL shortening service [[Source](https://github.com/michaelminter/fracture-url)]
- [streetart.io](http://itunes.com/app/streetartio) streetart.io allows you to share and discover interesting street art, public art and sculptures around you and your city. API is powered by Sinatra and Redis.
+- [TaskwarriorWeb](http://theunraveler.github.com/taskwarrior-web/) - A Sinatra-based web interface for the Taskwarrior todo application. Because being a neck-beard is only fun sometimes.