Figure 3

The population growth of the largest populated location. (a) Renren, the growth of population as a function of time in the largest populated location, follows a power function: n(t) = 155.8t^1.31-1706. (b) Twitter, the growth of population as a function of time in the largest populated location, follows a power function: n(t) = 0.19t^2.97-678.8. (c) Gowalla, the growth of population as a function of time in the largest populated location, follows a power function: n(t) = 68.83t^1.61-243.9.