Links
[1] https://www.umass.edu/windenergy/learn/links/generalinfo
[2] http://guidedtour.windpower.org/en/tour/wres/index.htm
[3] http://www.awea.org/pubs/factsheets/10stwf_fs.PDF
[4] http://www.nrel.gov/docs/fy02osti/31256.pdf
[5] http://www1.eere.energy.gov/windandhydro/wind_how.html
[6] http://energy.sourceguides.com/businesses/byP/wRP/wRP.shtml