Hi folks, I don't know if this is of specific interest to anyone here, but I am passing it along FYI--a little feedback will give me some idea if people would be interested in related topics e.g. I am frankly obsessed with Document Management Systems (DMS) and have begun compiling some information on that topic as well. https://wiki.ubuntu.com/DocBookEditors I was concentrating specifically on DocBook XML, but many of these programs work just as well with other XML DTDs and even XSLT, at least one also works with LaTeX. There are several very good free options (Jedit is my current favorite folowed by SciTE) and I have listed some commercial options as well. Some of these programs are also capable IDEs for C++, Python, Java, and other programming languages. Jonathan