CL notes that "Web Service" (WS) is an exceptionally confusing and misleading label, which he intends to explain here in the second half of April 2003. In the meantime, ...
See http://www.oreillynet.com/lpt/a//webservices/2002/02/12/webservicefaqs.html . for info on web services.
See also http://c2.com/cgi/wiki?WebServices .