"Billions of Drops in Millions of Buckets" explains why the nonprofit sector must assume a greatly enhanced role in producing transformative social change; why capital market fragmentation prevents nonprofits from achieving the levels of growth necessary to produce systemic change; how fragmentation results from the lack of actionable investor information about nonprofit performance; and why financial intermediation is essential to funding performance-driven philanthropy. The book then explains how prediction market mechanisms could generate useful rankings of nonprofit performance to serve as a virtual nonprofit stock market to channel defragmented capital toward social enterprises that produce the most impact.