The New York Times has a book review that I've just been reading. The book is Once You're Lucky, Twice You're Good - The Rebirth of Silicon Valley and the Rise of Web 2.0, By Sarah Lacy. If you follow the internet community you will know many of the stories being told in the book, but there are some that aren't quite as famous as Mark Zuckerberg of Facebook.
Here's an excerpt form the review.
"The title promises an incisive, illuminating examination of just what it is that engenders serial success. Indeed, Lacy delivers on that promise with her profile of Marc Andreessen, who helped build one of the first Web browsers and made millions with Netscape, the browser company. He then started a software company, which Hewlett-Packard bought last year for $1.6 billion. Now 37, he has Ning, a social-networking company for which he has high hopes. Lacy draws a fascinating portrait of Andreessen and his need not just to best himself but to equal the successes of his mentor, Jim Clark, the Silicon Valley entrepreneur who financed Netscape."