XML.com is pleased to welcome Norman Walsh as a regular columnist on the site. Norm is a Senior Application Analyst at ArborText, Inc., a developer of industrial stength SGML authoring and publishing tools, though we need to say that the words here are his own, not those of his employer. Norm brings a wealth of expertise in SGML, XML, text processing and digital publishing. His column, XML Q&A; will cover a variety of topics, dictated by you, the viewer. Please share your questions and suggestions for things you'd like to see covered to firstname.lastname@example.org.