OECD iLibrary	 Access data and metadata. Online library of the Organisation for Economic Cooperation and Development (OECD) featuring its books, papers and statistics and is the gateway to OECD's analysis and data. Statistics include: Coal, electricity, emissions, renewables, energy prices, taxes, energy balances, agriculture, trade, education, labor, science and technology.
Lighting Topics (Oikos Green Building Library)	 Information on efficient lighting, CFLs, and what to look for when buying CFLs. Oikos: "Focused on Energy Efficient Building and Environmentally Sound Construction."
Energy Units	 Introduction to basic energy units, conversion factors and units, special topics relating to electricity (American Physical Society).
Energy and Power?	 Both concepts explained by David MacKay (Regius Professor of Engineering at Cambridge).
CIA World Factbook	 The World Factbook provides information on the history, people, government, economy, energy, geography, communications, transportation, and military for 267 world entities.
World Bank Search	 Access and download data and metadata for all countries in the world. Data sets include: primary energy sources, energy consumption, electricity, renewable energy, waste, water, transport, fertilizer, mortality, employment, environmental sustainability, education, wastewater, hospitalization, migrations, methane, NOX and CO2 emissions, etc.
OECD.StatsExtracts	 Access data and metadata for countries globally: general, agriculture, demography, economic, environment, finance, health, industry and services, international trade and balance of payments, labor, pricing and purchasing power parities, productivity, social protection and well-being.
Energy Information Administration (U.S)	 Access data and metadata: "The [EIA] collects, analyzes, and disseminates independent and impartial energy information to promote sound policymaking, efficient markets, and public understanding of energy and its interaction with the economy and the environment."