DOM 2 HTML
Builds on DOM 2 core, adding interfaces specific to HTML documents.

DOM 2 Style
DOM interfaces for working with Cascading Style Sheets (CSS) and styles of elements in a document.

DOM 2 Traversal-Range
DOM interfaces for traversing document trees and working with contiguous selections.

DOM 2 Views
AbstractView and DocumentView interfaces for accessing and updating a representation of a document.

DOM Level 1
Stable and widely implemented, this is the normative specification.

DOM Level 2 Core
A set of core interfaces to create and manipulate the structure and contents of a document, including the Node and Document interfaces.

DOM Technical Reports
A list of all W3C DOM recommendations and working drafts.

Mathematical Markup Language
Includes a DOM module for manipulating MathML.

Scalable Vector Graphics
Specification includes a DOM API for manipulating SVG images.

Synchronized Multimedia Integration Language
Includes a DOM API for manipulating SMIL multimedia presentations. Still being developed.