Energy Efficiency
The Leicester UK Energy Efficiency Advice Centre gives free impartial advice on energy efficiency within the home and for small businesses. Provides description of services, products and resources.
http://www.energy-advice.co.uk/

World Energy Efficiency Association
WEEA is composed of developed and developing country institutions and individuals charged with increasing energy efficiency. Assist developing and industrializing countries in accessing information on energy efficiency.
http://www.weea.org/

Energy Efficiency
The Energy Efficiency Page reflects EIA's information on energy efficiency and related information. This site provides an in depth discussion of the concept of energy efficiency and how it is measured, measurement, summaries of formal user meetings on energy efficiency data and measurement, as well as analysis of greenhouse gas emissions as related to energy use and energy efficiency
http://www.eia.doe.gov/emeu/efficiency/

Better Bricks
Information and resources about building energy efficiency for designers, owners and operators provided by the NorthWest Energy Efficiency Alliance.
http://www.betterbricks.com/

Energy Efficiency Alliance
Protecting the Global Environment by Working with China to Harness Efficiency As A Viable Energy Resource
http://www.chinauseealliance.org

Municipal Energy Efficiency Network (MUNEE)
Program that helps municipalities and cities from the former Soviet Union to design and implement energy efficiency policies.
http://www.munee.org/

Principle of a hybrid Compressed Air and Supercapacitors Energy Storage system
with Maximum Efficiency Point Tracking. 5-author 8-page pdf of paper describes use of supercapacitors to increase CAES efficiency.
http://leiwww.epfl.ch/publications/lemofouet_rufer_cyphelly_barrade_grasser_store_03.pdf

EE 21 Energy Efficiency
UNECE Energy Efficiency 21: promote an investment environment in which self-sustaining energy efficiency projects can be identified, developed and implemented
http://www.ee-21.net/

American Council for an Energy Efficient Economy
Sponsors an international conference on energy efficiency in buildings. Publishes reports on technical and policy issues relating to energy efficiency.
http://www.aceee.org/

Northeast Energy Efficiency Partnerships
NEEP is a regional non-profit, that increases and coordinates energy efficiency and market transformation efforts in the US Northeast.
http://www.neep.org/