There's a guy from the U.S. that calls himself Gerald that wrote a blog entry aiming to introduce XML technologies (from a Java point-of-view):
Note that he also mentions XINS as a web services framework.
Blog by Ernst de Haan (from .nl). What is there to know about me? Above all, that I am a christian. On this blog I write mostly about web development, UNIX, Apple, Java, XML and web design.