A recent study by Java developer Raghu Kodali has shown that porting Sun’s Java EE tutorial application RosterApp from EJB 2.1 to EJB 3.0 resulted in more than a 50-percent reduction in code.

A must-read tutorial showing how to use Grails (Java's Groovy answer to Ruby on Rails) to quickly build a functional website around an existing EJB 3 entity bean domain model with very little code.

In-Depth Migrate J2EE Applications for EJB 3.0 The EJB 3.0 programming model has been simplified significantly. Learn migration approaches that help ferret out difficult issues you're likely to face ...