FRED
Federal Reserve Economic Data is a project by the Economic Research Department of the Federal Reserve Bank of St Louis. This treasure trove of economic data collects over 670,000 US and international economic time series, from 89 different sources, on a single website. Data coverage includes all major areas of macroeconomic analysis: growth, inflation, employment, interest rates, exchange rates, production and consumption, income and expenditure, savings and investment, and more.