It’s still in beta but you can sign up for an invite. Unassumer A new addition to the lean startup tools out there but a valuable one all the same. Created by customer development expert and ...

Eisenmann, Thomas, Eric Ries, and Sarah Dillard. "Hypothesis-Driven Entrepreneurship: The Lean Startup." Harvard Business School Background Note 812-095, December 2011. (Revised July 2013.) ...

It's not often you find a startup used by 25 million people every month. It's also rare to find a startup that serves 50 billion images per month. It's even more rare for that fast-growing startup ...