Directories

EcoBusinessLinks - Green Directory - A renewable energy resource with +300 categories +11,000 green links.
http://www.ecobusinesslinks.com/

CleanEnergy - Worldwide directory of renewable energy related companies, products, news, and events. Free companies registration. Many with web pages.
http://www.cleanenergy.de/

Momentum Technologies LLC - A guide to more than 3000 renewable energy businesses and organizations. Businesses by product type, business type, and location.
http://energy.sourceguides.com/

The Green Pages - A comprehensive guide to the full spectrum of environmental products & services, featuring 7'000 leading suppliers from 148 countries since 1994.
http://www.eco-web.com

Tsinghua-BP Clean Energy Center Directory - Renewable Energy Information on Markets, Policy, Investment, and Future Pathways
http://www.martinot.info/

The Utility Connection - Links to 4,000 electric, gas, water and wastewater utilities, utility associations, organizations, news, magazines, utility financial resources, and related state and federal regulatory and information sites.
http://www.utilityconnection.com/

Allthingseco - Directory for environmentally friendly, sustainable, fair trade, organic, natural, ethical and socially responsible products, services and information.
http://www.allthingseco.co.uk/

Sustainable Energy Finance Directory - The Sustainable Energy Finance Directory is a free-of-charge online database of lenders and investors who actively provide finance to the sustainable energy (renewable energy and energy efficiency) sector worldwide
http://www.sef-directory.net

Power Technology - A portal for the electrical power industry: international product and service catalogue, event calendar, associations directory, and related links.
http://www.power-technology.com/