title: How to create Conceptual map using d3
body: <p>I am new to d3, my requirement requires to create a map as in this link:
  <a href="http://www.findtheconversation.com/concept-map/" rel="nofollow">http://www.findtheconversation.com/concept-map/</a></p>
  
  <p>Can anyone guide on any D3 diagram or layout close to this.
  I tried with force layout with rect and circle nodes and modifying the links and paths, but still it does not seem appealing.</p>
  
  <p>Any guidance would be helpful.</p>
  
  <p>Thanks.</p>