Twitter Think Tank Statistics (December 11, 2012, versus November 22, 2011)
Twitter followers: November 22, 2011
Heritage 158486
Cato 116912
Reason 78611
Mises Institute 17199
CEDICE 16681
NCPA 10462
Brookings 7222
Manhattan 7020
Adam Smith Institute 6919
Fraser 6202
Acton 4421
Instituto Millenium 3612 (Brasil)
Atlas 3358
ICP (Colombia) 2114
Mises Brasil 1694
SPN 1255
PRI 1112
Libertad US (Heritage) 1027
Templeton 351
Individuals:
Grover Norquist 15050
Lew Rockwell 10576
Thomas Woods 6156
Maria Blanco 3258 ("Godivaciones" Spain)
Twitter followers: December 11, 2012