The podcast references a newsletter that provides detailed insights and analysis on rental housing economics, particularly focusing on multifamily REITs. Entrepreneurs can create a subscription-based newsletter that aggregates and analyzes data from various sources, providing valuable insights to investors, property managers, and other stakeholders in the housing market. The newsletter could cover trends, market analysis, and economic forecasts tailored to the rental housing sector. The target audience would be real estate investors, property managers, and industry professionals seeking in-depth analysis and actionable insights. Tools for implementation could include newsletter platforms like Substack or Mailchimp for distribution.