A muckabout app for learning Clojure with.
If it's running anywhere live at the moment it'll be here.
I was also able to get it running quite easily on Ubuntu by following the instructions here, doing lein ring uberwar, renaming the jar file as a war (?) and copying it up into /opt/jetty/webapps.
Copyright (C) 2014 Peter Reavy
Distributed under the Eclipse Public License, the same as Clojure.