Lately a few folks from our team have published an edited version of the internal SOA Suite 11g foundation training which was rolled out all over the world, in more than 30 locations, and covers the major pieces and technologies we are shipping as a unified platform.
http://www.packtpub.com/getting-started-with-oracle-soa-suite-11g-r1/book
Heidi and her team have done a tremendous job to structure the labs and hands-on exercises in a didactic, explanatory way - with solutions all the way through. This way the book serves not just as a tutorial, but also as a reference bible when it comes to implementation of specific features and concepts.
Certainly worth reading.
