Federal Reserve Economic Data
FRED is an online database consisting of more than 156,000 economic data time series from 61 national, international, public, and private sources. FRED, created and maintained by Research Department at the Federal Reserve Bank of St. Louis, combines data with a powerful mix of tools that help the user understand, interact with, display, and disseminate the data
Use the Help link to to learn about FRED, or watch the FRED Video Tutorials from NYU Stern School of Business.
DBnomics gives access to over 21,000 datasets from 62 data agencies around the world. If you are looking for time-series data from sources such as the European Central Bank, the United States Congressional Budget Office, the World Bank, the National Association of Realtors, or a country's national statistics office, you will want to check out all that DBnomics provides.