Aurora
Links
Troms Auroral Observatory
http://geo.phys.uit.no/index.html
Some Articles about the Aurora and the Geomagnetic Field (norwegian, english, german).
University of Calgary portable auroral imager
http://www.phys.ucalgary.ca/~trondsen/pai/
Data, images, and instrument description of a high resolution auroral imager.
Uranus Aurora
http://www.windows.ucar.edu/cgi-bin/tour_def/uranus/magnetosphere/U_aurora.html
Explanation of how aurora is different on Uranus
Yukon Aurora Forecast
http://www.birchwoodtours.com/?cid=53&section=aurora&isModule=True
Predictions updated every 15 minutes for the Yukon-Alaska area.