This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Yes, there is/will be a chapter on testing web services. It's actually much easier than testing web interfaces, as it is much more focused on expected outcomes for given inputs. Personally I use the same tools as for other BDD testing: in Java I would use JBehave/Thucydides for the living documentation, and Jersey to talk to the web services. Of course it depends on your platform: in .NET you might use SpecFlow and your favourite .NET web service client library.