Internet Public Library - Economics
Examples of the many sites found here include the U.S. Bureau of Economic Analysis (BEA), USA Today's Economy Track, and OANDA (the currency converter). This site is no longer being updated but their archives will remain accessible.
About.com - Economics
This economics guide, run by John Irons, is part of the About.com Web site. It addresses general interest issues and does a good job covering new economic events on the Internet.
Moody's Analytics: Economy (formerly Dismal Scientist)
This site offers macro and regional data with analysis plus general commentary.