title: Algorithm to implement a word cloud like Wordle
body: <h2>Context</h2>
  
  <ul>
  <li>Take a look at Wordle: <a href="http://www.wordle.net/" rel="noreferrer">http://www.wordle.net/</a></li>
  <li>It's much better looking than any other word cloud generators I've seen</li>
  <li>Note: the source is not available - read the FAQ: <a href="http://www.wordle.net/faq#code" rel="noreferrer">http://www.wordle.net/faq#code</a></li>
  </ul>
  
  <h2>My Questions</h2>
  
  <ul>
  <li>Is there an algorithm available that does what Wordle does?</li>
  <li>If no, what are some alternatives that produces similar kinds of output?</li>
  </ul>
  
  <h2>Why I'm asking</h2>
  
  <ul>
  <li>just curious</li>
  <li>want to learn</li>
  </ul>