title: Java Messaging : Difference between ActiveMQ, Mule, ServiceMix and Camel
body: <p>I am new to Messaging and want to know the difference between <code>ActiveMQ</code>, <code>Mule</code>, <code>ServiceMix</code> and <code>Camel</code></p>
  
  <p>Anyone knows how each of these product is different?</p>
  
  <p>Thanks in advance !</p>
  
  <p><strong>EDIT:</strong> Also would like to know any good place/resource to learn these things.</p>