The cubicle life isn't for everyone -- especially not Krista King. She explains how the love for travel led her to start a couple of online businesses so she could work from anywhere in the world. Well -- anywhere with a reliable Internet connection. Mobile devices and cellular service have made that easier in the past few years. After a couple of failed attempts, she realized calculus video tutorials were the right product because she loves helping people improve at calculus. From that love came integralCALC.com. She takes us through her story and provides insight for those who want to optimize content for new businesses.