title: SQL (MySQL) vs NoSQL (CouchDB)
body: <p>I am in the middle of designing a highly-scalable application which must store a lot of data. Just for example it will store lots about users and then things like a lot of their messages, comments etc. I have always used MySQL before but now I am minded to try something new like couchdb or similar which is not SQL.</p>
  
  <p>Does anyone have any thoughts or guidance on this?</p>