* Zook, M.A. (2001). ''Old hierarchies or new networks of centrality? The global geography of the internet content market.'' American Behavioral Scientist. (June). Vol 44. No. 10. 1679-1696. | * Zook, M.A. (2001). ''Old hierarchies or new networks of centrality? The global geography of the internet content market.'' American Behavioral Scientist. (June). Vol 44. No. 10. 1679-1696. |