When we started Skype, if you look at analyst reports, no one forecasted it as a big business. Also when Google started, it was not fashionable to be in search. It's not trying to do the obvious - that's the hard part.

If you want to be an entrepreneur, it's not a job, it's a lifestyle.

You shouldn't be afraid of failure - when something fails, you think, 'What did I learn from that experience? I can do better next time.' Then kill that project and move on to the next. Don't get disappointed.

Skype is for any individual who has a broadband Internet connection.

If you could utilize the resources of the end users' computers, you could do things much more efficiently.

I try not to dwell on big mistakes but to move on when I make a mistake. I make mistakes most of the times and that's part of the risk profile being an entrepreneur. I guess one big mistake I did was not to start my own company earlier. I spent nine years working for others before starting Kazaa in 2000.

You have 1 billion people using the Internet with 200 million of those now using broadband internet connections, so the Internet has become a powerful network. It can carry calls.