Trade Routes - Descriptive commentary on several routes including the Ambassador, Appian Way, Incense, and Silk. - http://www.mnsu.edu/emuseum/history/trade/variousroutes2.htm
Tea-Horse Ancient Road - Illustrated commentary on this route which stretched across more than 4,000 kilometers, mainly through Southwest China's Sichuan and Yunnan provinces and the Tibetan Autonomous Region. - http://www.chinaculture.org/gb/en_curiosity/2005-10/19/content_74658.htm
The Silk Road - The story of one of the world's oldest and most historically important trade routes and its influences on the culture of China, Central Asia and the West. - http://www.ess.uci.edu/~oliver/silk.html