Afghans have long been resistant to central authority — as the United States has found to its frustration — with Afghanistan divided along tribal, cultural, religious and linguistic lines. Its mountains and valleys have stood in the way of communications breakthroughs that have unified other societies.But a social media network initially financed by the United States is finding a way around those barriers. It is connecting millions of Afghans equipped with cellphones and other mobile devices, allowing an exchange of ideas that has never been possible in Afghanistan outside Kabul, the capital.
http://www.nytimes.com/2014/04/30/world/asia/social-media-in-afghanistan-takes-on-life-of-its-own.html