中国xml联盟
http://www.xml.org.cn:8188/
cpcw网站
http://netschool.cpcw.com/homepage/outspace/index.htm#xml
xml.com
http://www.xml.com/pub
the xml software site
http://www.xmlsoftware.com/
developerworks：xml：overview
http://www.ibm.com/developer/xml/
msdn online xml developer center
http://msdn.microsoft.com/xml/default.asp