Other
Kites as Education: Wind Origins
This "kite science" site offers information on wind and the atmospheric conditions that cause it. From "Principles of Aeronautics."
Idaho State University
Global Wind Systems [Pdf]
A great description of the global scale circulation and heat energy. Discusses a single-cell model, a three-cell model, jet streams and more.
Wolfram Research
Wolfram Science World: Hadley Circulation
The creation of wind systems by Hadley cells is explained at this site.