"xqLib provides vendor neutral open source XQuery main and library modules that can be readily integrated into an XQuery application to prevent developers from re-inventing the wheel for common reusable pieces of functionality." Yay, Elsevier!
"xqDoc provides a simple vendor neutral solution for documenting XQuery library and main modules, as well as tools to generate a user friendly presentation of this documentation and cross reference information."
"As the innovation leader in commercial database technology, Oracle Database 10g Release2 debuts a full-featured and high performance database-native XQuery engine."