title: Hash params vs url params, when to use which?
body: <p>Is there a convention or best practice advice on when to use hash params, url params, vs paths?</p>
  
  <p>For example:</p>
  
  <ul>
  <li>hash params: stackoverflow.com/questions#q=13630937&amp;t=hash-params-vs-url-params</li>
  <li>url params: stackoverflow.com/questions?q=13630937&amp;t=hash-params-vs-url-params</li>
  <li>url path: stackoverflow.com/questions/13630937/hash-params-vs-url-params</li>
  </ul>
  
  <p>Are there security, seo, usability benefits or disadvantages of each or is an issue of style?</p>