David Baron's DOM Tests  
   Tests in JavaScript for compliance with some parts of the W3C DOM specs.
   http://dbaron.org/dom/test/

DOMJuan: Koala's implementation of the DOM  
   Java implementation of the DOM Level 2. Free and with source code. Currently (version 0.1) only the Core and Events modules are available.
   http://koala.ilog.fr/domjuan/

4DOM  
   A full DOM level 2 implementation for Python, included in the PyXML package.
   http://pyxml.sourceforge.net/topics/

Media Design in Progress  
   XML and DOM-based editors and web site publishing systems for the Macintosh. Uses Lisp as the language.
   http://www.in-progress.com/

NIST DOM tests in ECMAScript  
   Tests currently written for MSIE; should be updated soon for other implementations.
   http://xw2k.sdct.itl.nist.gov/dom/index.html

DocZilla - an SGML/XML browser  
   Built on Mozilla code, this browser has the same support for the DOM as Mozilla does.
   http://www.doczilla.com/index.html

Mozilla - XML/HTML browser  
   An open-source XML/HTML browser which is implementing full Level 2 DOM support.
   http://www.mozilla.org/

Dieter Köhler's XDOM 2.0  
   A Delphi3 implementation of the DOM Level 2 Core and Traversal modules. Binaries and source code available, free of charge.
   http://www.philo.de/xml/dom/

IBM's DOM Implementation in C++  
   XML for C++ parser (XML4C) is a validating XML parser written in a portable subset of C++. It implements Level 1 and some of Level 2 DOM, as well as providing SAX interfaces. Source code, samples and API documentation are provided with the parser. Now par
   http://alphaworks.ibm.com/aw.nsf/techmain/BAFBD2F79A8C641B8825675B0083C6DB?OpenDocument

Microsoft Internet Explorer - XML/HTML Browser  
   Full support for the Level 1 DOM.
   http://www.microsoft.com/windows/ie/default.htm

NIST XML/DOM Activity  
   Includes pointers to the DOM test suites for Level 1.
   http://www.nist.gov/xml/

Robin Cover's DOM Pages  
   A list of DOM resources.
   http://www.oasis-open.org/cover/dom.html

The Gnome DOM Engine  
   Promises to create a fully standards-compliant DOM interface. It is based on Daniel Veillard's libxml.
   http://www.levien.com/gnome/gdome.html

CenterPoint/XML  
   An open-source C++ class library with SAX and DOM Level 1 interfaces.
   http://www.cpointc.com/XML/

DOM 1 Reference  
   Reference guide with examples.
   http://zvon.org/xxl/DOM1reference/Output/index.html

IBM's techexplorer Hypermedia browser  
   A plug-in for Netscape Navigator and Microsoft Internet Explorer which enables the display of TeX, LaTeX, and MathML documents and the publishing of interactive mathematical and scientific material on the Web. Includes the DOM (JavaScript, C, C++ and Java
   http://www-3.ibm.com/software/network/techexplorer/

MSXML  
   The Microsoft stand-alone XML parser with Level 1 DOM support, implemented as a COM component.
   http://msdn.microsoft.com/downloads/tools/xmlparser/xmlparser.asp

Oracle XML Developer's Kit  
   Contains a parser with a Level 1 DOM interface. Available in Java, C, C++ and PL/SQL.
   http://technet.oracle.com/tech/xml/index.htm

Oracle XML Transviewer Beans  
   DOM Java Bean encapsulation for use in quickly developing GUIs to XML applications.
   http://technet.oracle.com/tech/xml/transview_java/

XML4P Perl DOM  
   Includes a collection of Perl5 wrapper objects that internally use their XML4C counterparts for Level 1 DOM processing.
   http://xml.apache.org/xerces-p/index.html

Adobe's SVG Viewer  
   Uses the DOM for animation of SVG images. Currently preview (alpha) releases; these implement some of DOM Level 2 as well as DOM Level 1.
   http://www.adobe.com/web/features/svg/tools.html

Unicorn XML Processor  
   A stand-alone ECMAScript interpreter that supports Level 1 DOM Core. An XSLT processor contains the same engine.
   http://www.unicorn-enterprises.com/

xmlBlaster  
   XML and CORBA/RMI/XML-RPC based MOM (message oriented middleware) for Java/C/C++/Perl/Tcl/Python. Free for commercial and non commercial use (LGPL).
   http://www.xmlBlaster.org/

Ozone  
   Open source, Java, OO DBMS which includes a DOM interface.
   http://www.ozone-db.org/

IBM's DOM Implementation in Java  
   A validating XML parser written in 100% pure Java, which includes an implementation of the Level 1 DOM, some of the Level 2 DOM, and SAX. Now part of the Apache Xerces project.
   http://alphaworks.ibm.com/aw.nsf/techmain/F62DB5F8684DCF6A8825671B00682F34?OpenDocument

DOM2 Reference  
   Reference guide with examples for the second release of the object model.
   http://zvon.org/xxl/DOM2reference/Output/index.html

OpenXML  
   An open source, pure Java framework for XML-based applications which implements the Level 1 DOM and some of the Level 2 DOM.
   http://download.cnet.com/downloads/0-14492-100-5565652.html

Parsed XML Project  
   Project implementing the DOM as a persistent object in the Zope application server. Currently implements Core levels 1 & 2, XML level 2, and some Core & Loading level 3.
   http://dev.zope.org/Wikis/DevSite/Projects/ParsedXML/FrontPage

Minidom  
   Lightweight DOM implementation in the standard Python library.
   http://www.python.org/doc/current/lib/module-xml.dom.minidom.html

eDOM  
   An editing extensions to the W3C DOM. Specification, tests, FAQ, demos, downloads.
   http://www.playsophy.com/edom/edom.html