Easy to learn WSDL and SOAP tutorial

Question

Hello everyone,

I am reading WSDL and SOAP spec and my purpose is to learn Spec/protocol details, for example, the component model of WSDL/SOAP and meaning/relationship between sections of messages/XML.

Now I am learning from Spec, but find it so boring to learn and not very readable.

http://www.w3.org/TR/wsdl20/

http://www.w3.org/TR/2007/REC-soap12-part0-20070427/

My question is whether there is more readable documents or turorials? Or learning web sites?

thanks in advance,
George