The “Securing Web Services: Practical Usage of Standards and Specifications” book looks like a very good opportunity to publish your work in the area of Web Services security. The deadline for chapter proposals has been extended till March 24. Panos (the editor) has been doing some excellent work on security for the GOLD project so I know he will also do great a great job leading the editing efforts. From what I’ve heard, he already has some very good names on board.
If you are doing research or if you are involved in building real, secure Web Services-based systems for the industry your should consider contributing to this book.