This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
Netbeans.org has a section with web service tutorials: http://netbeans.org/kb/trails/web.html If you want to be thorough, I would recommend starting with XML (unless, of course, you already are familiar with XML).
I have written a document in preparation for the SCDJWS 5 certification, which can also be used as a tutorial and reference, please refer to the SCDJWS Links in the SCDJWS forum here on JavaRanch to download a free copy.