If you've got an idea, start today. There's no better time than now to get going.

Obviously, being the CEO, there are a lot of eyes on what you do and what you post and how you post, and I think one of the challenges of Instagram in general is that, as we get bigger, there are just more voices in the room, more eyes on everyone's accounts.

You need to fail in order to find the right solution.

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.

Working at a startup to make a lot of money was never a thing, and that's why I decided to just finish up school. That was way more important for me.

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

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