title: Problems directly using PhantomJS in node.js
body: <p>I'm attempting to use PhantomJS, and I've installed it  via NPM.
  I can't seem to run any of the of the examples, in fact I can't even run:</p>
  
  <pre><code>var page = require('webpage').create();
  </code></pre>
  
  <p>I get the error:  </p>
  
  <pre><code>Error: Cannot find module 'webpage'
  </code></pre>
  
  <p>Is there anything i'm missing? I'm using a few other modules that I've installed via NPM in the same directory with no issues</p>