Many existing products are gaining SGML support or becoming SGML-based. Novell sells SGML support for Wordperfect. Current versions of Interleaf are apparently entirely SGML oriented. Installed SGML tools I've put together a collection of the better free SGML tools . Each of them is described below together with pointers to their associated documentation.
Editors psgml A major mode for emacs.
Excellent SGML support. I've put together an extension to this mode to support automatic timestamping. An excellent new parser. Defines specific SGML document types to mirror the LaTeX styles. Includes support for translating bibliographies.