http://home.clara.net/darvill/altenerg/wind.htm

http://www.eia.doe.gov/kids/energyfacts/sources/renewable/wind.html

http://en.wikipedia.org/wiki/Wind_power

http://www.alliantenergykids.com/stellent2/groups/public/documents/pub/phk_ee_re_001502.hcsp

http://www.aweo.org/faq.html

http://www.mge.com/environment/wind/

http://www.powerhousetv.com/stellent2/groups/public/documents/pub/phtv_eb_re_000315.hcsp#P23_2271