Niklas Zennstrom: What I’ve Learned
wired.com
wired.com
I also find fascinating that even Skype's business model seems to be P2P-driven: Skype seems to charge only for services that use the company's infrastructure, while P2P services (those that do not directly use Skype's servers) are free.
Really the others where just money loosers - and if you run a big company, you risk loosing a large amount of money.
IBM licensing DOS, that was stupid.