HEATKEYS

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

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...

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

YouTube is a place to discover, watch, upload and share videos.

GrabCAD - a free CAD model library with 2D / 3D CAD files available for software like SolidWorks, AutoCAD, Autodesk Inventor, Solid Edge, SketchUp etc.

TurboCAD Forums - Index

Science...applied.

EzineArticles.com allows expert authors in hundreds of niche fields to get massive levels of exposure in exchange for the submission of their quality original articles.

An extensive illustrated site about windmills, (especially in the UK). Includes mills for grinding, pumping, and electricity generation

St. Charles Tower, Inc is a wireless project management and developement company operating in St. Louis, Dallas and Las Vegas.

The personal page of musician and aspiring engineer Kevin Harris.

The KidWind Project is a team of teachers, engineers and scientists committed to innovative energy education. Our goal is to promote the elegance of wind power through affordable tools and training programs that challenge, engage and inspire students...