How much does it cost to build the world’s hottest startups?
The Next Web
DECEMBER 2, 2013
Founder Kevin Systrom launched Instagram with 25,000 beta users on October 6, 2010; two years later, the app continues to see massive growth, recently reporting 150 million active users. To develop Tumblr, which is currently hosting 140 million blogs, “The biggest looming variable would be hosting,” explains Saul. “On
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