title: Why would you use a message based system?
body: <p>What are the motivations for using a message based system?</p>
  
  <p>I'm seeing a lot about service buses such as <a href="http://www.nservicebus.com/" rel="noreferrer">NServiceBus</a> and <a href="http://code.google.com/p/masstransit/" rel="noreferrer">Mass Transit</a> and I'm wondering what the benefits of the underlying methodology are.</p>