ENCYCLOPEDIAS and Directories
ADDRESSES AND PHONE NUMBERS
Congressional Directory. (also available at Ref. Desk JK 1011)
United States Government Manual. (also available at Ref. Desk JK 421 .A3)
Statistical Abstract of the United States. (also available at Ref. Desk HA 202 .S7)
Historical Statistics of the united States Colonial times to 1970 Online
City and County Data Book 2007
State and Metrpolitan Area Data Book 2006
Federal State and Local Governments Fom the Census Bureau this contains a wealth of data.
World Bank Public Sector Debt Statistics
"An international consortium of about 700 academic institutions and research organizations, ICPSR provides leadership and training in data access, curation, and methods of analysis for the social science research community.
ICPSR maintains a data archive of more than 500,000 files of research in the social sciences. It hosts 16 specialized collections of data in education, aging, criminal justice, substance abuse, terrorism, and other fields."
Bureau of Labor Statistics
Budget Of the United States
Citizen's Guide to the Federal Budget Economic Report of the President
Congressional Budget Office