Some institutions won't pay for others. In our space, big non-profit science institutions like Janelia and Allen Brain foot the bill for making the data availa

Some institutions won't pay for others. In our space, big non-profit science institutions like Janelia and Allen Brain foot the bill for making the data available. Depending on the utility of the data, Amazon (https://aws.amazon.com/opendata/public-datasets/ https://aws.amazon.com/opendata/public-datasets/) or Google (https://cloud.google.com/public-datasets/ https://cloud.google.com/public-datasets/) could also handle the cost of storing and distributing the data. With versioned data, you could leverage the largesse of the big institutions to provide the base data, and then only the deltas for the children versions need be handled by users making changes.