EMS Global Express Mail Tracking Number Inquiry: http://www.ems.com.cn/ems/index.jsp
China Higher Education Qualifications Online Certificate Inquiry: http://www.chsi.com.cn/xlcx/
Chinese Yellow Calendar Lookup, which checks daily auspiciousness and inauspiciousness: http://lunar.anet.net.tw/
Perpetual Calendar Lookup (including memorial days, holidays,...)