title: Getting a stock's price history
body: <p>Are there any simple HTTP APIs out there which will let me get the stock price for a symbol (such as GOOG) at a specific date and time?</p>
  
  <p>Something like...</p>
  
  <pre><code>http://somewebsite.com/?
      symbol=GOOG&amp;
      year=2010&amp;
      month=7&amp;
      day=30&amp;
      hour=4&amp;
      minute=00
  </code></pre>
  
  <p>Giving a response of $484.85</p>
  
  <p>I'm hoping to have an end result of a haskell function whose type signature looks something like...</p>
  
  <pre><code>getQuote :: Symbol -&gt; Date -&gt; Time -&gt; Price
  </code></pre>