title: Source code of well designed functional web apps?
body: <p>What are examples of well designed functional (as opposed to object oriented) web apps that make their source code available? I am currently studying the <a href="http://news.ycombinator.com/" rel="nofollow noreferrer">Hacker News</a> <a href="http://arclanguage.org/" rel="nofollow noreferrer">source</a> but I'd like to see some other non-trivial examples, ideally in <a href="http://clojure.org/" rel="nofollow noreferrer">clojure</a>.</p>
  
  <p>For MVC there are lots of Rails and PHP apps, frameworks, and tutorials to study - what is there for functional programming?</p>