The major reason why Instagram works is that you can follow anyone out there and start following their photos immediately.

If you've got an idea, start today. There's no better time than now to get going. That doesn't mean quit your job and jump into your idea 100 percent from day one, but there's always small progress that can be made to start the movement.

I have a pretty random life. I run a business and go all over the world doing things for that business, things that are fairly orthogonal. But my job is to run my company, not to be the best Instagrammer. I'll let other people be awesome at it.

Instagram was created because there was no single place dedicated to giving your mobile photos a place to live and to be seen.

On the intimate relationships, I'd say you can be someone who wouldn't normally get attention in traditional media and come onto Instagram and build this massive following.

In the past, people have looked at photos as a record of memory. The focus has been on the past tense. With Instagram, the focus is on the present tense.

I believe photos is one of the underlying things in every social network that becomes successful.