As a registered member of SearchSOA.com, you're entitled to a complimentary copy of Chapter of Ajax: Your visual blueprint for creating rich Internet applications written by Steve Holzner, Ph.D. and published by Wiley Publications. "Handling XML with Ajax"
You can create XML documents if you know the rules. You can create your own tags in XML documents, because you do not have to use a predefined set of tags, as in HTML. This chapter lays out the rules of creating an XML document including navigation, extraction, validating, and reporting.
This was first published in January 2008