Google is the world's largest and most popular search engine, the main search services are: web search, image search, video search, map search, news search, shopping search, blog search, forum search, academic search, financial search. 2010 March 23 early morning, Google Inc. headquarters issued a statement to formally withdraw from China, the final closure of the Chinese version of The search service was finally shut down in China and switched to a Hong Kong-based server to provide simplified services.