In the arts they call it plagiarism, in business they call it competition.

In terms of fear, I still am most afraid of Freddie Kruger.

I never thought of myself as an entrepreneur before I started this. I just like to build things.

I just like to build things and do things.

Groupon as a company - it's built into the business model - is about surprise. A new deal that surprises you every day. We've carried that over to our brand, in the writing and the marketing that we do, and in the internal corporate culture.

When you think of couponing, you picture a mom cutting coupons out of the back of the newspaper.

One of the challenges of innovation is figuring out how to wipe your mind clean about what you should be doing at any given moment, and not having a religious attachment to what's gotten you there thus far.