学步园

理解 XML Schema:XML Schema 初步 (I)

http://www-128.ibm.com/developerworks/cn/xml/x-schema/part1/index.html
理解 XML Schema:XML Schema 初步 (II)

http://www-128.ibm.com/developerworks/cn/xml/x-schema/part2/index.html
理解 XML Schema:XML Schema 进阶 (I)

 http://www-128.ibm.com/developerworks/cn/xml/x-schema/part3/index.html

理解 XML Schema:XML Schema 进阶 (II)

 http://www-128.ibm.com/developerworks/cn/xml/x-schema/part4/index.html

ibm有一个xml资源网页，比较完善：

http://www-128.ibm.com/developerworks/cn/xml/

http://www-130.ibm.com/developerworks/xml