I'm often asked about the list of Java EE 5 compatible applicationservers. Here is the complete list of officially certified servers. But the actual number of servers should be even greater - even Spring supports EJB 3.0...
NEW 2016: Java EE 7 Workshops: Bootstrap, Effective, Architectures, April, 4th-6th, Munich's Airport
On demand workshops: Java EE 7 Bootstrap, Effective Java EE 7 and NEW: Java EE 7 Testing are available for streaming