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As one of the leaders in the group-buying space, LivingSocial has had a great year, ending the year with $175 million in investment from Amazon earlier this month. But like many success stories, LivingSocial didn't suddenly spring up wholly formed. Indeed, the company has had to pivot several times before landing on their current form - and success.

In the video below, LivingSocial co-founder and CTO Aaron Batalion talks about the company's previous manifestations - consultants, Facebook app developers, and so on - and the principles that helped motivate the company to change direction like this.