If you need learning JEE ( Java Enterprise Edition) formerly known as
J2EE, with Wesphere Aplication Server, I really recommend the sources
Redbook - Experience Java EE! Using WebSphere Application Server
Community Edition 2.1
This redbook is a hands-on guide to developing a comprehensive
Java™ EE application using WebSphere® Application Server
Community Edition v2.1 (WASCE).
I recommend it who is interesting in developing JEE aplication.
It's important to know that WebSphere® Application Server
Community Edition v2.1 (WASCE) is basead on Apache Geronimo AS .
Redbook - WebSphere Application Server Community
Edition 2.0 User Guide
This redbook takes you through the basics of using WebSphere®
Application Server Community Edition V2 to run applications.
I recommend it who is interesting in administration of JEE aplication
Redpaper - WebSphere Application Server V7.0:
This redpaper is discussion centers on the runtime server component of
WebSphere Application Server.
I recommend it who is interesting in administring JEE aplication,
SysAdmin who is interesting in to know the new WAS v.7.
Redbook - WebSphere Application Server V7: Concepts,
Planning and Design
This redbook discusses the concepts, planning, and design of
WebSphere® Application Server V7.0 environments. This book is
aimed at IT architects and consultants who want more information for
the planning and designing of application-serving environments,
ranging from small to large, and complex implementations.
If you wanna add some sources useful to us, leave a comment,
Kleber Rodrigo de Carvalho