Some of the key features and services of J2EE:

• At the client tier, J2EE supports pure HTML, as well as Java applets or applications. It relies on Java Server Pages and servlet code to create HTML or other formatted data for the client.
• Enterprise JavaBeans (EJBs) provide another layer where the platform's logic is stored. An EJB server provides functions such as threading, concurrency, security and memory management. These services are transparent to the author.
• Java Database Connectivity (JDBC), which is the Java equivalent to ODBC, is the standard interface for Java databases.
• The Java servlet API enhances consistency for developers without requiring a graphical user interface.

Picking a Winner: .NET vs. J2EE 
Although both frameworks stand on a foundation of programming languages, object models and virtual machines, they are strikingly different when you consider the design goals of their runtime environment.

Sun's J2EE Page 
Information, fAQs, tutorials, white papers, news and updates concerning J2EE.

J2EE Project Dangers
Avoid these 10 J2EE dangers to ensure your enterprise Java project's success.

Sun Releases New Version of J2EE
An article from SolarisGuide.com from September 2001.

How Do J2EE and .NET Measure Up?
As the dominant platforms for enterprise and ASP applications as well as Web services, it's tempting to picture Sun's J2EE and Microsoft's .NET in a winner-take-all fight to the finish. However, the competition is more complicated than that.

Microsoft .NET vs. J2EE
How do they stack up?