The World Wide Web is home to some of the most comprehensive data sources available.

The Economic Chart Dispenser is an internet tool that will construct a chart of almost any data available on the web.   Want to see the CPI trend over the past 20 years, or the compare the economic growth rates of Germany and Japan?

If you want a quick view of current statistical releases from the government or access a data bank of social indicators, check out the Economic Statistics Briefing Room.

Also, Business Cycle Indicators will give you data on the business cycle.

Ever wonder how many telephones are installed in Namibia, or the per capita income of Saudi Arabia?  Check out the CIA World Factbook.

If you are looking for sources of macroeconomic data, check out these sites: the National Bureau of Economic Research provides comprehensive data on the economy since the 1930s, while the NBER Macrohistory Database site is an excellent source for hard-to-find data before the Great Depression.