title: Need documentation for Magento Models (Mage::getModel())
body: <p>I've read Alan Storm's guide <a href="http://www.magentocommerce.com/knowledge-base/entry/magento-for-dev-part-5-magento-models-and-orm-basics" rel="nofollow noreferrer">here</a> on Magento ORM principles and how to access the data. I'm writing a plugin to export data from magento. </p>
  
  <p><strong>Question</strong></p>
  
  <p>Where do I find documentation for the different types of models available in Magento?</p>
  
  <p>For example, </p>
  
  <p><code>Mage::getModel("catalog/categories");</code></p>
  
  <p>What are the other allowable models in getModel?. </p>
  
  <p>There's some information in the API documentation, like product.list, and if I were to guess, then I would say that this some how translates over to the getModel call, but i'm not sure how. Can anyone link me? google searches for "getModel documentation" and 
  "Magento models" produce no relevant results.</p>
  
  <p>Here are the links I have looked at:</p>
  
  <ol>
  <li><a href="http://www.magentocommerce.com/wiki/2_-_magento_concepts_and_architecture/magento_database_diagram" rel="nofollow noreferrer">DB Diagram</a> </li>
  <li><a href="https://stackoverflow.com/questions/773562/magento-orm-documentation">SO Question</a></li>
  <li><a href="http://inchoo.net/ecommerce/magento/magento-debugging/getting-things-in-magento-by-getmodel-and-getdata-methods/" rel="nofollow noreferrer">getModel and getData methods</a></li>
  <li><a href="http://alanstorm.com/category/magento" rel="nofollow noreferrer">Alan Storm's guide</a></li>
  </ol>
  
  <p>So far, Alan's stuff has been the most helpful.
  Help me, @Alan Storm :)</p>