Java - http://java.sun.com/ WebServices - Axis - http://ws.apache.org/axis/ Microsoft .NET - http://www.microsoft.com/net/ Simple Object Access Protocol (SOAP) 1.1 - http://www.w3.org/TR/SOAP/ Extensible Markup Language (XML) 1.0 (Second Edition), W3C Recommendation - http://www.w3.org/TR/REC-xml Namespaces in XML, W3C Recommendation - http://www.w3.org/TR/REC-xml-names XML Schema Part 1: Structures, W3C Recommendation - http://www.w3.org/TR/xmlschema-1 XML Schema Part 2: Datatypes, W3C Recommendation - http://www.w3.org/TR/xmlschema-2 Universal Description, Discovery and Integration (UDDI) - http://www.uddi.org/ SourceForge - http://sourceforge.net/