The ONE thing that actually matters when it comes to your marketing. (And it’s not the latest funnel software.) Should you be using Twitter, Snapchat, or any other social media in your marketing? Here’s an easy way to find out which one’s right for you. Why you should stop using data and metrics just as a reporting tool and do this instead. How to approach marketing like a scientist and design your tests for maximum ROI. How to get better referrals on auto-pilot.