Many of you are familiar with the official Java EE Tutorial already. It is a great resource for learning Java EE and it is totally free!
The Java EE 7 version of the tutorial is now available along with the SDK/GlassFish 4. There's both a PDF version and an HTML version. In addition, the team behind the tutorials has also developed a great sample/starter application for Java EE 7 named Your First Cup: An Introduction to the Java EE Platform that should be very helpful to beginners.
A detailed blog entry talks about both the updated tutorial and starter application.