Try searching these before posting a problem. If you are using Microsoft technologies and platforms to create your XML applications, then a great deal of peer support is to be found in this newsgroup, as well as input from Microsoft's own developers. This is the best place in which to ask questions and find out the latest news about Microsoft's XML initiatives. The XML interest list is strictly for those developing Active Server Pages XML solutions. It is a moderated list, so although the volume of posts is low, the discussion should be of a reasonable quality.
Mailing lists exist for the discussion of XML using popular programming languages.
This mailing list has been set up to help the efforts of the Python XML special interest group, whose aim is to develop XML tools for Python. Questions about, and suggestions for, Python XML support should be posted to this list. While traffic volumes are low, it's a good place to ask specific questions regarding Java XML parsers and integrating XML with Java applications. This list is for developers and deployers of SOAP, the Simple Object Access Protocol. It is hosted by Developmentor.