Slack & Flickr: Stewart Butterfield
How I Built This with Guy Raz
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How Did You Become a Millionaire?
Flicker is a photo-sharing game that lets users share photos with other people. It was created by British programmer Calnderson, who worked on it for two hours every day in the train to london. The idea came to Calnderson after he got food poisoning and couldn't keep anything down during a flight from London to New York. Flicker has been downloaded more than one million times since its release last year.
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