Professional Social Networks90.000.000 users…
Yandex. Only 4 
Blog networks
400.000$/month37.000.000$16.000$/ month20.000.000$Not sure But a lot!
What for US?
Social Network Entertainment platforms
Social Network actually!
First of all…
PlatformIn 2010, a combined $300 million from Softbank and Google were invested in Zynga
??? Social Network
Suggestion?...
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Social networks plus software developers