Stewart Butterfield Quotes
People sometimes forget how early Flickr came. Facebook didn't add photo sharing till a year after Flickr was acquired by Yahoo.
Citations
Shontell, Alyson. "The cofounder of Flickr and Slack on how to build a multi-billion dollar startup." Business Insider, Insider Inc., 18 May 2015.
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Daniel Stewart Butterfield is a Canadian billionaire businessman, best known for co-founding the photo-sharing website Flickr and the team-messaging application Slack.