HEATKEYS

A little online application with interactive map that shows sun movement and sunlight phases during the given day at the given location.

SunPosition, online application for calculating the sun

Curious About Astronomy? Astronomers at Cornell University will answer your questions. Contains an extensive archive of previous questions, astronomy-related links and more.

University of Oregon Solar Radiation Monitoring Laboratory Web Site

The NOAA Earth System Research Laboratory was formed to observe and understand the Earth system and to develop products, through a commitment to research that will advance the National Oceanic and Atmopsheric Administration

Midwest Permaculture provides webinars, 8-day design certification courses, education, seminars, and classes in permaculture for the Midwest.

Astronomy labs and teaching resources developed at the University of Nebraska-Lincoln. Includes simulations, flash animations, graphics, in-class questions and ranking tasks.

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...

Grasshopper™ is a graphical algorithm editor tightly integrated with Rhino’s 3-D modeling tools.