General Data Sources
The World Bank
CIA World Fact Book

Census Data

U.S. Census Bureau: 2010 Census Data

Economic Data

International Monetary Fund
National Bureau of Economic Research

Education Data

U.S. Department of Education: National Center for Education Statistics
Education Policy and Data Center

Election Data

American National Election Studies
Election Data Services

Energy Data

U.S. Energy Information Administration: Data Tools & Models
National Renewable Energy Laboratory

Environmental Data

National Climatic Data Center: National Environmental Satellite, Data, and Information Service
Quantitative Environmental Learning Project

Health Data

National Institutes of Health
Centers for Disease Control and Prevention

Social Media Data

Viralheat: Social media data

Links to More Data Links

Social Data Sources
Data Information and Services Center
Data Surfing on the World Wide Web
Online Data Sources