Angry Birds is one of the fastest-growing online products I've seen, growing even faster than Skype, and the company has done a brilliant job of extending it across different platforms and merchandise.

If you want to be an entrepreneur, it's not a job, it's a lifestyle. It defines you. Forget about vacations, about going home at 6 pm - last thing at night you'll send emails, first thing in the morning you'll read emails, and you'll wake up in the middle of the night. But it's hugely rewarding as you're fulfilling something for yourself.

Another differentiator is that Skype is free and simple to set up, and it costs us virtually nothing for a new user to join the Skype network, which is why we can offer the service for free.

I hope that my investment into Atomico will become my best financial investment to date.

My job is to work hard, together with my players, to improve.

I was very insecure at the beginning of my career. I didn't value my talent. I would have probably skipped signing up for movies that I didn't want to do if I had understood that I had been accepted and people liked my work.

When I lived in Boston, I had an office that I rented because I found it wonderful to go away from my house to work: It was so quiet, and I couldn't go to the refrigerator or do the laundry.

Starting a company in San Francisco when we did usually meant it was destined to be a data-driven tech company. But that didn't seem to fully encompass what we wanted with Airbnb. When we tried looking through a tech lens, it didn't work. The humanity was missing.