Though few deny that administrative and other large-linked datasets represent new frontiers for social science research, there have been surprisingly few formal studies that survey and document how so-called "big data" in all its forms is actually changing social science research. This grant supports a project by a team led by Eric T. Meyer at Oxford's Internet Institute (OII) to empirically document the ways social scientists are getting access to data at scale and the tools they use to work with it. Meyer and his team will conduct a series of in-depth interviews with 125 researchers and technologists in academia, industry, and government to look at a series of interrelated questions about how big data is changing research, including how data flows between data sources and scientists, what questions big data is being used to address, how does the openness of a dataset affect its use, and how public and private data are used differently by researchers.