| The SGML/XML Web Page: Database containing over 2000 documents pertaining to SGML, XML, and related standards. Features a bibliography for SGML, vendors and service providers, software reviews, mailing lists, user groups, and projects. |
| A Gentle Introduction to SGML: An SGML FAQ in the context of the TEI e-text initiative and SGML application. |
| Comparison of SGML and XML: A Note from the W3C detailing the differences and similarities between the two markup languages. |
| Overview of SGML Resources: SGML links at the W3C, meant for use in reviews of the HTML specification. |
| SGML: A Gentle Introduction: Tutorial from Text Encoding Initiative. |
| SGMLtools-Lite: Formerly Linuxdoc-SGML, SGMLtools offers a out-of-the-box SGML processing solution for technical (DocBook) documentation. [Open source, GPL] |
| SP: A free, object-oriented toolkit for SGML parsing, validating, and entity management. |
| Women Writers Project, ACM Crossroads Winter 1999: This article from Crossroads Winter 1999 issue describes the use of SGML to encode literature archives for research, written by B. Fan. |