BEOnline - Internet resources on all aspects of business and economics, provided by the Science, Technology & Business Division, Library of Congress.
Business Reference Services - provided by the Science, Technology & Business Division, Library of Congress.
Data.gov - "...the home of the U.S. Government's Open data..." provides access to Federal datasets.
Knowledge@Wharton - an online business analysis journal from The Wharton School of Business, University of Pennsylvania.
Planet Money: The Economy Explained - from National Public Radio (NPR).
RFE: Resources for Economists on the Internet - from the American Economic Association.
SCORE - a network of volunteer business mentors.