anchor.diff:        <span class="note">(cross-site *shared* chat room)</span>
       - Scrabb.ly
         <span class="note">(*multiplayer* collaborative crossword game)</span>
  +
  +    [1]: http://2010.nodeknockout.com
   
   .slide#slide-11
     :markdown
  
positive.code:     # <3 hackathons
  
      - written up by [venturebeat][1]
      - too much traffic
      - concerned yelp email
  
      [1]: http://www.nytimes.com/external/venturebeat/2008/10/31/31venturebeat-99853-99853.html
  
  .slide#slide-3
    :markdown
  
negative.code: 
  .slide#slide-4
    :markdown
      # forcing 2009 to be realtime
  
      - XHR long-polling
      - [Orbited][1]: Python twisted package
  
      [1]: https://bitbucket.org/desmaj/orbited
  
  .slide#slide-5
    :markdown
      # "Rails"?
  
      - 1,185 lines of JavaScript
      - [12 lines][1] of Ruby
  
      [1]: https://github.com/visnup/lazeroids/blob/master/app/metal/update.rb
  
  .slide#slide-6
    :markdown
  