Find sources on these topics:

• Airports
• Energy
• Health Care
• Immigration
• Sports (Olympics & other)

• Federal Aviation Authority

 The Energy Information Administration (EIA) collects and present data on a variety of energy sources including petroleum, natural gas, electricity, coal, renewable and alternative fuels, and nuclear. 

Here are some sites for prices and supply of petroleum and petroleum-related derivatives:

• World crude oil prices
• Weekly retail gasoline and diesel prices from the Department of Energy
• Weekly supply estimates
• Crude Oil Proved Reserves, Reserves Changes, and Production
• Refining and Producing Capacity: Weekly Inputs, Utilization & Production
• The Society of Petroleum Engineers provides links to numerous data sources

• OECD Health Data
• World Bank WDI
• The Congressional Budget Office (CBO)
• Agency for HealthCare Research and Quality - from the U.S. Department of Health & Human Services
• National Vital Statistics System: go here for data on births, deaths, infant mortality, etc.
• United Nations Statistical Division
• National Center for Health Statistics - from the Center for Disease Control and Prevention
• FEDSTATS - find statistics at the national or state level on a broad range of topics
• Statistical Resources from the U.S. Department of Health and Human Services
• State Health Facts - provided by the Kaiser Family Foundation
• Statistics from WomensHealth.gov - a division of the U.S. Department of Health & Human Services
• U.S.Food and Drug Administration (FDA) Consumer Health Information
• the National Institutes of Health - Health Information Site
• The National Library of Medicine - Consumer Health Information
• WebMD

• Eurostat
  • ​Population & social conditions > Main tables: Population > international migration & asylum > population by citizenship: foreigners
• Department of Homeland Security:  U.S. immigration statistics
• The UK Office for National Statistics maintains this site containing migration data 
• Annual Report of Citizenship and Immigration Services
  • Formerly known as the Immigration and Naturalization Service this department is now part of the Department of Homeland Security
• Demographic Trends from the National Center for Policy Analysis
• Historical Census Statistics on the Foreign-born Population of the United States: 1850-1990 from the Bureau of the Census
• Office of Immigration Statistics "Provides immigration statistics from 1994, as well as state estimates of the United States' illegal alien resident and foreign-born populations."
• American laws about immigration are gathered at a site from Indiana University.
• Statistical Abstract of the United States - At the Reference Desk or online.
• Institut National des Etudes Demographiques (National Institute for Demographic Studies)
  • Look through the sections on "Immigration Flows" and "Immigrants and Foreigners" within the section Homepage > Population in figures > Metropolitan France

• SPORTSDiscus
• SBRNet - Sports Business Research Network
• Olympic.org - the official site of the Olympic movement
• TEAMUSA - the official site of the U.S. Olympic committee
• Sports Marketing: here's a link to my reserch guide on sports marketing