Mr. Money Mustache (https://www.mrmoneymustache.com/) is included because its practical, experience-driven guidance on frugal living, aggressive saving, index-fund/passive investing, and application of the 4% safe-withdrawal rule provides the foundational personal-finance roadmap readers need before they can purposefully deploy capital for impact; this aligns directly with Part 2: The Purposeful Investment Landscape and the Exploring the Landscape chapter by supplying the actionable wealth-building strategies and financial-literacy groundwork described in the NotebookLM comment. I verified the site and reviewed flagship posts on the 4% rule and early retirement to confirm the emphasis on building financial independence through disciplined saving and investing, which is a prerequisite for values-driven investing and impactful giving.