SMS is one of the most underused answers to that problem. Texts get opened, they feel personal, and the barrier to respond is lower than almost any other channel. When you ask a question, people answer. And what comes back can become some of your most compelling content.
Most local utility companies provide energy audits for their small business customers. For example, my provider - PECO - offers customized reports and online tools to benchmark energy usage, incentives for better energy consumption, rebates for buying energy-efficient equipment and free energy assessments.
For most companies, there's roughly a 12-month period where the business is at its peak value, and then it crashes out. The companies that capture generational returns are often the ones where someone spies that moment instead of assuming the good times will get even better.