1) Web Services Using NetBeans 6.0
2) Web Services Programming (with Passion!) Hands-on Online Course
3) Web Services Tips by Ćukasz at http://jee-bpel-soa.blogspot.com/
4) Metro Web Services:
- Metro Home Page
- Metro Overview
- Java Web services: Introducing Metro
- Create a Metro JAX-WS Web service using GlassFish Tools Bundle for Eclipse
- A Common Ant Build File for Metro-Based Services and Clients
6) JAXB
7) WS-Security
8) WSDL
9) CodeRanch.com: Web Services Forum
10) CodeRanch.com: SCDJWS Forum
Good Articles:
A birds-eye view of Web services