I'm looking for a good solution for graphically viewing a SOAP-based web service and possibly interacting with it (for testing purposes). Online (browser-based) solutions would be interesting too.
I've had success with a combination of the Elipse WTP WSDL Editor and SoapUI.
Eclipse WTP WSDL Editor -http://wiki.eclipse.org/index.php/Introduction_to_the_WSDL_Editor
SoapUI - http://www.soapui.org/