On of these non-Internet interviews is with Steve Wozniak where he talks about the Homebrew Computer Club which has been mythologized in books like Fire in the Valley into this kind of group where the personal computer was born. As he says it, far from being young geniuses, most of the people weren't really good engineers-- they could put things together, but to make the leap from something like the Altair that you programmed by flipping switches to the Apple I with a full keyboard about a year apart seems to be quite a leap. His talk about how that happened makes a lot of sense.
There are three themes that readers will find in this book: ideas evolve and what is ultimately successful might start off as a side project or an evolution of the original idea- action leads to ideas; The second is that you have to be doing something you like, or at least find useful; lastly, a lot of the drama that comes out of the stories isn't about developing the technology, but problems that any start-up might run into.
One thing that keeps coming up in nearly all the stories is how the product changes: RIM starts out making industrial networks before they come up with a super-pager affectionately known as the CrackBerry; Blogger and Hotmail started as side projects that eclipsed their founder's original product idea. On the other hand, some ideas like PayPal evolve out of trying create a way of electronically transferring money. As well, many of the people involved seem to have at least 2-3 companies under them, so some ideas actually evolve over several companies. Many of the ideas also come from the actual work of creating. Mark Fletcher (creator of BlogLines) has a quote, "you just iterate because users are going to tell you [what they want]" (p.240) that sums up how ideas come from just putting something out there that does one thing and people will tell you want it's not doing for them. So relizing that what you start on might not be what you end up being successful with is an important point to remember.
Secondly, while it sounds vaguely Monty Python-ish, do something you like is another theme. Many of the people profiled started work on their projects before there was a company. A typical example would be del.icio.us (now just Delicious- no mention given here of the whole silly.dot-nam.es fad "del.icio.us" was probably largely responsible for) which Joshua Schachter built up Delicious while working as an analysts at, financial services company, Morgan Stanley. Other examples in the book include the development of the light-weight FireFox web browser out of the bloated Mozilla browser. While it sounds pretty straight-forward, some of the best ideas have come from people building things they'd use themseves and then putting it out there for other people to try.
Finally, if anybody comes of badly in this book it's venture capitalists. While there are only a few stories where it looks like they crossed the line from shady to illegal, it's probably worth knowing that any business involving large sums of money probably has its share of people to watch out for. Besides them, the flip side is when a company starts running out of money, then there's a few stories of employee problems of which Craigslist and Blogger's founders talk a bit about this.
The best things about this book is they let the people involved speak- that is, the questions are short and answers go on for sometimes two pages. Secondly, there's range of companies covered, many of the people interviewed have started more than one company and some of the stories go back to the mid-1970s. Finally, the writing is good, I don't know if there was a lot of editing involved, but a lot of the people tell some pretty engaging stories about how their ideas evolve, how they enjoy what they're doing and how it wasn't technology that caused problem when things didn't work out.