Whenever people question the definition of something being a startup I just point them to this wonderful Quora answer: http://www.quora.com/Entrepreneurship/Wha

Whenever people question the definition of something being a startup I just point them to this wonderful Quora answer: http://www.quora.com/Entrepreneurship/What-is-the-proper-definition-of-a-startup/answer/Dave-McClure http://www.quora.com/Entrepreneurship/What-is-the-proper-def... Dave McClure makes a fair point that until a company works out the following three things, they're a startup, not a business. 1. What its product is, 2. Who its customers are. 3. How to make money. So yes, a post-IPO company valued at $21B which still hasn't worked out two of those three items is still a startup in my opinion...