People’s Republic of China's Embassies in USA, UK, Canada, Australia, New Zealand or other countries. 
U.S. Embassy in China 
U.K. Embassy in China 
Canada Embassy in China 
Australia Embassy in China 
New Zealand Embassy in China 
For those from other counties, you can find your embassies and consulates here.  
Some travel advice from US state department, and Tips for Travelers to the People’s Republic of China
Tour advice from U.K. government 
Some travel advice from Australian government
Read unbiased opinions about hotels and vacations at TripAdvisor.
www.pandasim.com Prepaid sim card, unlocked cell phone rental for worldwide travelers.
China Maps A comprehensive web source for China travel and tour map users.

More China:
Chinas Official Gateway to latest travel news, tips, travel guide, BBS, etc 
China National Tourism Administration and China National Tourist Office (US) offers comprehensive China travel information
China Heritage Sites at UNESCO list
The weather and climate information about the major tourist cities of China like Beijing, Shanghai, Xian, Guilin, Lhasa, Hong Kong, etc.
Victoria Cruises (USA) on Yangtze River 
A nice website for Chinese culture
Online Currency Converter - http://www.xe.com
Tour De Chine un professionel Chine tour opérateur (French)
Great Wall of China - Greatwallchina.info is a web-based platform and community for the people who intend to learn, talk and find out more about the Great Wall of China
Trax2 Maps - Quality Bilingual China Maps can be ordered online