title: Difference between a CMS and a blogging engine?
body: <p>I'm not sure if the following three are synonyms or if there is any difference between them or of they have any hierarchical relationship.</p>
  
  <p>But could you please clarify me on how are they different/related?</p>
  
  <ul>
  <li>CMS</li>
  <li>Blogging engine</li>
  <li>Forum software like phpBB</li>
  </ul>