You can be a couple in London who happen to take pictures of their breakfasts every day - it's called @symmetrybreakfast - and you can gain hundreds of thousands of followers overnight because people are genuinely interested in your unique angle on the world.

I love challenging the notion that, in order to be a tech founder, you have to be holed up in a dark room wearing a T-shirt and baggy jeans.

I don't think you should ever start a business and move in a direction where you can't see it becoming a business.

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

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

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

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.