Learning Java with Passion! Amazing!
Checking Arun Gupta's blog, I found this link to a free Ruby on Rails online course. It will start on July 15th. Great initiative! Amazing!
But the post is not about this, it is about all the resources available at Java Passion.
You can find in there great information about Java, Enterprise Java and currently the WebServices course is running. Learn concepts like WSDL and SOAP, important if you are learning the concepts behind WebServices.
If you are looking for new technology, you may want to check the material related to EJB 3 and JPA.