title: NoSql Crash Course/Tutorial
body: <p>I've seen NoSQL pop up quite a bit on SO and I have a solid understanding of <strong>why</strong> you would use it (from here, Wikipedia, etc).  This could be due to the lack of concrete and uniform definition of what it is (more of a paradigm than concrete implementation), but I'm struggling to wrap my head around how I would go about designing a system that would use it or how I would implement it in my system.  I'm really stuck in a relational-db mindset thinking of things in terms of tables and joins...</p>
  
  <p>At any rate, does anybody know of a crash course/tutorial on a system that would use it (kind of a "hello world" for a NoSQL-based system) or a tutorial that takes an existing "Hello World" app based on SQL and converts it to NoSQL (not necessarily in code, but just a high-level explanation).</p>