Volunteers of Tianjin University of Technology introduce the 2010 Summer Davos Forum to citizens in Tianjin, north China, Sept. 11, 2010. A total of 100 service stations have been set and 1,500 city volunteers have started to offer services on Friday for the 2010 Summer Davos Forum which will kick off in Tianjin Sept. 13. [Xinhua]

 Volunteers offer services outside the Memorial Hall of Zhou Enlai and Deng Yingchao in Tianjin, north China, Sept. 11, 2010. A total of 100 service stations have been set and 1,500 city volunteers have started to offer services on Friday for the 2010 Summer Davos Forum which will kick off in Tianjin Sept. 13. [Xinhua]