Space Weather

Space Environment Center
http://www.sec.noaa.gov
Today's Space Weather
http://www.spaceweather.com/

Solar Flares
http://hesperia.gsfc.nasa.gov/sftheory/studyflare.htm
http://sohowww.nascom.nasa.gov/hotshots/X17/
http://science.nasa.gov/headlines/y2001/ast12jun_1.htm

Exploring Electricity and Magnetism
http://micro.magnet.fsu.edu/electromag/java/index.html

Earth's Magnetosphere
http://helios.gsfc.nasa.gov/magnet.html

Solar Weather in a Nutshell
http://www.dartmouth.edu/~spacephy/iswm/img0.htm