The following is a list of resources I found helpful when writing the book.
Documentation
Oracle Application Server 10 g Administrator s Guide 10 g (9.0.4), Part Number B10376-02.
Oracle Application Server 10 g Application Developer s Guide 10 g (9.0.4), Part Number B10378-01.
Oracle Application Server 10 g Concepts 10 g (9.0.4), Part Number B10375-02.
Oracle Application Server 10 g Installation Guide 10 g (9.0.4) for AIX-Based Systems, hp HP-UX PA-RISC (64-bit), hp Tru64 UNIX, and Linux x86, Part Number B13658-02.
Oracle Application Server 10 g Installation Guide 10 g (9.0.4) for Microsoft Windows, Part Number B10433-01.
White Papers
Oracle Corporation. Managing the Oracle Application Server with Oracle Enterprise Manager 10 g.
Owen, Tracie A. Oracle Application Server 10 g : Basic Administration.
Web Sites
http://apache.org
http://jakarta.apache.org
http://java.sun.com/j2ee
http://modules.apache.org
http://portalcenter.oracle.com
http://www.oracle.com/technology/products/ias/as_sdk.html
http://www.oracle.com/technology/products/ias/index.html
http://www.oracle.com/technology/products/ias/ toplink /index.html
http://www.oracle.com/technology/products/ias/web_cache/index.html