The most beautiful evidence of the Sun-Earth Connection are the auroras--the northern and southern lights...
http://www.exploratorium.edu/learning_studio/auroras/
The Exploratorium's "Auroras: Paintings in the Sky."
http://windows.engin.umich.edu/cgi-bin/sw_quicklook4b.cgi
The Aurora Today from the Polar Spacecraft.
http://windows.engin.umich.edu/spaceweather/storm_displays.html
Real time data on auroras.