Radiant Earth is building a new data sharing utility called Source Cooperative that aims to make it trivially easy for data providers to publish data on the Internet. Source Cooperative is the next generation of Radiant MLHub which Radiant Earth built to share Earth observation training datasets. In this talk, we will share lessons learned about sharing data from working with NASA, Planet, Sinergise, AWS, Microsoft, and others. We will also share how we’re applying those lessons to create Source Cooperative.