About the Java Technology by Mary Campione and Kathy Walrath
This trail in the Java Tutorials defines the Java programming language and the Java platform.

Unraveling Java Terminology by Dana Nourie
Java technology names and acronyms can be confusing for newcomers and experienced developers. This article defines the most common Java terminology in easy-to-scan, alphabetical order, and provides links for more information and downloads.

Java Technology Map by the Java SE Development Team
See how the technologies relate to the Java platform. Each item is clickable, so you can get the documentation on each technology instantly.

Books to Shorten Your Learning Curve by Dana Nourie
The right book for you depends on what you know. This article looks at some of the latest Java technology books, and who should read them.