Under the supervision of Google, Kaggle is an online community of data scientists who publish seemingly random datasets on everything from tracking the frequency of internet memes to “last words of death row inmates."
For demographical data on U.S. inhabitants, this open data source is extremely useful. The sources of census bureaus are federal, state, and local governments, as well as commercial entities
Similar to the data.gov’s source for U.S. data, there’s also one for the entire United Kingdom. Reports contain data on everything from crime and justice to defense and government spending.
This is one of the most frequently updated and complete open data sources for information on GDP rates, logistics, global energy consumption, disbursement and management of global funds, and much more.