http://www.blogjava.net/darkbluefeeling/archive/2010/06/22/324143.html
http://db.myds.cn/ip_database.aspx
http://webservice.webxml.com.cn/WebServices/IpAddressSearchWebService.asmx?op=getCountryCityByIp
http://webservice.webxml.com.cn/WebServices/IpAddressSearchWebService.asmx
http://wiki.netbeans.org/HowToConfigureXDebug
http://vimcdoc.sourceforge.net/doc/usr_toc.html#usr_toc.txt