- WSLA
Use SLAs in a Web services context, Part 1: Guarantee your Web service with a SLA
Understanding quality of service for Web services
- Web Service Security:

• A good link can be found here. Also an older document can be found here.
• Good set of articles about WS security can be found here and here
• Security in a web services world: A proposed architecture and roadmap
• Implementing WS-Security
• Apache Axis document on security
• Understanding web services specifications, Part 4: WS-Security
  

-Web Service Transaction:

• Web Service Transaction Specification
• Web Service Transactions (Parts 1, 2 & 3)

- Web Service Handlers:

• A reading material can be found here.
• Apache Axis document on handlers.

- RESTful security:

• A discussion to follow.

- Enterprise Transaction and Security (in EJBs and Web Services)

- JPA:

• You can find a starting point about everying in JPA here.

- HTTP connection concepts

- Messaging:

• Starting point articles can be found here and here.

- EJB

- WS standards:

• WS-Addressing by example can be found here
• WS-Policy by example in this article.
• WS-ReliableMessaging is introduced in this article.
• WS-SecureConversation and WS-Trust are explained in here.
• WS-Security is explained here.
• WS-SecurityPolicy is detailed in here with example.
• More to read about WS-* in this article.

Practice with this or this or this :)