This week's giveaway is in the EJB and other Java EE Technologies forum. We're giving away four copies of EJB 3 in Action and have Debu Panda, Reza Rahman, Ryan Cuprak, and Michael Remijan on-line! See this thread for details.
What do you mean by "working with WSDL" - what do you need to do? If you need to generate a WS client from a WSDL, then most SOAP toolkits come with tools that can do that for you; check the documentation of whichever one you're using.
Ping & DNS - updated with new look and Ping home screen widget