Good References.... :)

Contents References
1.XML
1.www.w3schools.com
2. http://www.w3schools.com/schema/schema_intro.asp

2.XML Schema
1.www.w3schools.com
2.E-book :xml schema
Eric Van Der Vlist
Publisher:o’reilly
3.Web Services
www.w3schools.com
4.JAXB
www.w3schools.com
2. http://java.sun.com/webservices/docs/1.6/tutorial/doc/