Now that Facebook's IPO is well into the past, and user-growth has stalled a touch, it's easy to sit back and take the incredible story of Facebook for granted.
Facebook, which now has a billion users, reached 100 million users in just 10 quarters.
It reached 500 million just 12 quarters later.
That's beyond mind-boggling.
How'd it happen?
Over on question and answer site, former Facebook employees are telling stories about it. They're pretty fascinating – and certainly full of lessons for anyone else trying to build an audience/userbase.
First, there's former Facebooker Andy Johns, who writes this:
Next, there's Chamath Palihapitiya, Johns's former boss, who writes:
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