OpenHeatMap’s Pete Warden has created an interactive graphic of how the social network went from wannabe to gottahave – and investigates what made it happen Pete Warden, creator of the very fine OpenHeatMap , has written a guest post at Hubspot looking at the growth of Twitter. Nine months after being created in 2006, it had a few thousand users; now it’s got more than a hundred million

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See how Twitter grew – and find out what made it explode