.net如何防盗链：
http://home.fego.cn/members/sys/m_Blog/Detail.aspx?id=2356
http://www.chenjiliang.com/Article/View.aspx?ArticleID=1264&TypeID=5

联动控件
http://blog.csdn.net/iuhxq/archive/2006/11/08/1372602.aspx

url重写
http://blog.csdn.net/iuhxq/archive/2006/04/16/665298.aspx#520671