Google (GOOG) has announced that Shanghai Tianqing Information Technology Company will be its newest Google AdWords agent in China.

With the addition of Shanghai Tianqing, the search engine now has two agents for Google AdWords in Shanghai, which might show the company's strong demand in the Shanghai market as it usually only has one agent in each region in China.

Google says that its income from the agent system has been increasing dramatically in recent years and it has far exceeded the income from direct sales. So far, Google's agent system has been extended to the middle and western part of China as well as some second-tier cities.

Google is also rumored to be eyeing the acquisition of an online video sharing website in China following its acquisition of YouTube in the United States a few months ago.