We often hear that the world is drowning in data. Yet, when you want to learn and experiment, finding open, easily-accessible data sets remains a major challenge. Open data is data that can be freely used, intermixed with other datasets, and distributed to others without restrictions. We have compiled a small selection of publicly accessible data sources that should give an aspiring data scientist a quick start. We will be constantly adding new data sources to this page:
United Nations Data Sets
Open Government Data
Many national, state, province and municipal governments make a wealth of data available to the public. Find open data sets for your government.