WebServices Matrix

XML Technologies	Web Services Technologies	2nd Generation Web Services Technologies
XML	WSDL	WS-Coordination
DTD	SOAP	WS-Transaction
XSD	UDDI	BPEL4WS
XSLT		WS-Security
XQuery		WS-Reliable Messaging
XPath		WS-Policy
		WS-Attachments
		WS-Addressing

Google WebMaster Tools API	Google WebMaster Developers Guide	Webmaster Tools Data API Reference Guide	GData
Getting Started with GData	Analytics Tracking API	Google and Open Source Developer	Project Hosting
Google Ajax APIs	Google App Engine	Google Gears	GWT