SXML Specification

SSAX and SXML at SourceForge
SourceForge project with a goal to provide a complete stack of SXML technologies. SSAX, SXML, SXPath, SXSLT, and more.

SSAX
XML Parsing Framework

Namespaces in XML and SXML
A comparative tutorial

SXPath
XPath-compatible query language for SXML

SXML-tools
SXML-tools is a set of handy functions for DOM-like operations on SXML data

DataGuides
A descriptive schema for XML/SXML data