This paper attempts a first-cut listing of global public goods and international spillover activities, as well as providing some data on their global distribution alongside basic correlational analysis. Few if any goods are “pure” global public goods and there is a spectrum of the extent of spillovers. Some global public goods are not well measured. The listing is far from exhaustive, nor is it based on rigorous selection criteria. But it does suggest considerable diversity in trends, levels and sources of public good and spillover activities.