Where do we find the best place to learn start-up bussiness models ?

Question

every coder have a dream to see it's baby see the light and become a framework or even better a brand. So where do we find an information such as :

1. The bad and Good of Facebook
2. Facebook compare with others

or any case study report on particular start-ups

Answer 1

Although not case study in the strict sense, a recommended reading would be Founders at Work.

Founders at Work is a collection of interviews with founders of famous technology companies about what happened in the very earliest days. These people are celebrities now. What was it like when they were just a couple friends with an idea? Founders like Steve Wozniak (Apple), Caterina Fake (Flickr), Mitch Kapor (Lotus), Max Levchin (PayPal), and Sabeer Bhatia (Hotmail) tell you in their own words about their surprising and often very funny discoveries as they learned how to build a company.