Soulou

package main

import (
  "crypto/tls"
  "fmt"
  "net"
  "net/http"
  "net/http/httputil"
  "time"
)

fklingler

data:text/html, <script type="text/javascript" src="https://raw.github.com/MrMitch/downatello/develop/downatello.js"></script><style type="text/css">#md,#html{position:absolute;top:0;bottom:0;padding:5px;border:none;outline:none;font-family:monaco,consolas,sans-serif;font-size:1em}#md{resize:none;left:0;right:50%;border-right:1px solid black}#html{left:50%;right:0;font-family:sans-serif}</style><textarea id="md" oninput="document.getElementById('html').innerHTML=downatello.toHtml(document.getElementById('md').value);"></textarea><div id="html"></div>

jakeonrails

data:text/html, <style type="text/css">#e{position:absolute;top:0;right:0;bottom:0;left:0;}</style><div id="e"></div><script src="http://d1n0x3qji82z53.cloudfront.net/src-min-noconflict/ace.js" type="text/javascript" charset="utf-8"></script><script>var e=ace.edit("e");e.setTheme("ace/theme/monokai");e.getSession().setMode("ace/mode/ruby");</script>

dhh

# autoload concerns
module YourApp
  class Application < Rails::Application
    config.autoload_paths += %W(
      #{config.root}/app/controllers/concerns
      #{config.root}/app/models/concerns
    )
  end
end