Of all the interviews I've done, I often come back to this chat I had with @robwalling in 2010. Aside from being a great founder, Rob's a great teacher. He really understands how to articulate concepts in ways people can understand. “There are no bad markets,” says Rob, “some markets are just harder to communicate to than others.” This episode is especially timely now, as Rob had just started Drip at the time of our interview. Now, 6 years later, he just sold Drip to LeadPages.