Twitter hit mass first in its birthplace of San Francisco followed by Boston/NYC.
I bet we’ll see a similar adoption diagram for Instagram given its SF base and its East Coast explosion.
I’m even more interested in seeing the adoption map of a social network (weibo) in China.
My guess is that all the adoption is on China’s East Coast starting from the bottom at Hong Kong all the way up to Beijing.
Which city will be China’s Silicon Valley?