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wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual. Our multilingual how to manual has free step-by-step instructions on how to do all types of things.

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.

Mother Earth News - The Original Guide to Living Wisely

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Welcome to Wayne Keith's woodgas site! There's a lot to learn from other woodgas enthusiasts. Join the conversation! Have you built a wood gasifier? Let us know! Browse the articles on gasification; find hundreds of links and downlo...

Build It Solar will help people with Do It Yourself skills build solar projects that save money and reduce pollution. It is a "hands-on" site with detailed plans for solar projects including solar space heating, water heating, passive sola...

Discussion and education on renewable energy and self sufficiency topics

Journey to Forever: Hong Kong to Cape Town Overland - An adventure in environment and development, join us on the Internet, all welcome, participation, online education, school projects, free of charge

Wood used as fuel to power internal combustion engines. Woodgas, wood gas, for Hydrogen fuel for cars and trucks.

HowStuffWorks Science has explanations and colorful illustrations related to earth science, life science, and other wonders of the physical world.