Some interesting and recent WSDL articles:

• Building Industry Standard WSDLs.


• Building Industry Web services from Industry Standard WSDLs


• Alex on Wrapped vs Bare in WSDLs document/literal style.


• Draft: Web Service Description Requirements from the W3C working group.


• Tim and Martin's latest endpoints: SOAP Encodings, WSDL, and XML Schema Types

WSDL is a powerful beast. Not everyone loves it yet. But I believe in time, everyone will see how powerful it can be.