The document discusses the power of collective giving and data sharing in philanthropy. It notes that most charitable donations come from individuals rather than institutions. It advocates that non-profits begin sharing more donor data through open platforms and APIs to better understand impacts and outcomes, improve transparency, and create opportunities for increased giving through collective efforts like social giving days. The document encourages non-profits to clean their own data, participate in data sharing initiatives, and bring these ideas to other organizations in order to further philanthropic goals through openness and collaboration rather than secrecy.