Data source: Twitter public API.
We randomly chose 14314 users who created their twitter accounts in early July 2009 and have been monitoring the numbers of their followings, followers and tweets on a daily basis.
From these users, we picked out those users the numbers of whose followers are >200 and <1000.
Below is the plot of follower number growth pattern.
[...] This post was mentioned on Twitter by Ning Zhang, Michael Zhan Shi. Michael Zhan Shi said: In Data: Twitter Follower Growth Pattern: http://bit.ly/1x4YLT [...]