Don't Be Fooled By Vanity Metrics | TechCrunchStartups love to point to big growth numbers, and the press loves to publish them. We are as guilty as anyone else in this regard: one million downloads, 10 million registered users, 200 million tweets per day. These growth metrics can often be signs of traction (which is why we report them), but just as often they are not. It is important to distinguish between real metrics and what Lean Startup
http://techcrunch.com/2010/08/07/why-online2offline-commerce-is-a-trillion-dollar-opportunity/
