4DOM
A full DOM level 2 implementation for Python, included in the PyXML package. You Would also find info related to Python, XML, XML-SIG and much more.

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.

Apache XML project
Different open source tools, most of which use the Xerces implementation (DOM Level 1 & 2) as a base. Xerces itself is available in Java, C++, Perl, and COM.

CenterPoint/XML
An open-source C++ class library with SAX and DOM Level 1 interfaces. You Would also find info related to CenterPoint Connective Software Engineering, integrated manufacturing applications, data acquisition, data analysis, seamless integration solutions, industrial research, eDiagnostics, APC, advanced process control, Wafer map, MSA, GR&R, metrology, Enterpri and much more.

David Baron's DOM Tests
Tests in JavaScript for compliance with some parts of the W3C DOM specs.

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.

DocZilla - an SGML/XML browser
Built on Mozilla code, this browser has the same support for the DOM as Mozilla does.

DOM 1 Reference
Reference guide with examples.

DOM2 Reference
Reference guide with examples for the second release of the object model.

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. You Would also find info related to DOM, DOM Level 2, DOM2, Document Object Model, free, source, open source, Koala, Java and much more.

eDOM
An editing extensions to the W3C DOM. Specification, tests, FAQ, demos, downloads.

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 part of the Apache Xerces project. You Would also find info related to Application Development, Intranet/Internet, C++, XML, Parsers and much more.

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. You Would also find info related to Application Development, Java, Intranet/Internet, Database/Data Management, XML, Parsers and much more.

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). You Would also find info related to IBM techexplorer Hypermedia Browser, techexplorer, Mathematical Markup Language, MathML, LaTeX, TeX, Document Object Model, DOM, Scientific Publishing, Technical Publishing, Mathematics, Math, Macintosh, Linux, AIX, Solaris, Windows, SGI, ActiveX, Java, C++, Education, Scienc and much more.

Media Design in Progress
XML and DOM-based editors and web site publishing systems for the Macintosh. Uses Lisp as the language.

Microsoft Internet Explorer - XML/HTML Browser
Full support for the Level 1 DOM.

Minidom
Lightweight DOM implementation in the standard Python library. You Would also find info related to lib and much more.

Mozilla - XML/HTML browser
An open-source XML/HTML browser which is implementing full Level 2 DOM support. You Would also find info related to web browser mozilla firebird camino thunderbird bugzilla user agent web links cool sites and much more.

MSXML
The Microsoft stand-alone XML parser with Level 1 DOM support, implemented as a COM component. You Would also find info related to MSDN Online and much more.

NIST DOM tests in ECMAScript
Tests currently written for MSIE; should be updated soon for other implementations.