I had a spectacular four years as OpenTable CEO and remain an active executive chairman. I think, for me, some of the interesting observations there are, you know, global is important, mobile is extremely important. And then, network businesses are very attractive.
I think if you look at the commonalities between eBay, PayPal and OpenTable, all three are businesses that built a network in a vertical. Network effect businesses are very attractive businesses.
I've been managing Internet businesses since 1999. That's 12 years of being in the tornado, and it's pretty exhausting. I'll be looking at the next challenge, but in terms of operating an Internet business, I've scratched that itch very well.
Great businesses can be built on scale. I think Amazon has built a phenomenal commerce business largely on scale. Their network effect isn't obvious to me, but boy, have they used scale effectively.