Live cams from various places, for example Norway and Canada, show actual aurora activity, useful to see when aurora are actually happening or just nice to watch the action from the comfort of your own screen.
Svalbard web cam 1000km North of Norway. Updated every minute minimum during moondown periods. Time in UT. Camera: Nikon D80. Lens: Sigma 4.5mm f/2.8 EX DC Circular Fisheye HSM. Field of view: 180° in all directions. http://kho.unis.no/kho_dslr.htm
Current sky in Lapland viewing North. Nikon D40 (Digital single-lens reflex camera), They set shutter speed, iris, image quality, resolution by remote. Lots of other cams available on the site http://uk.jokkmokk.jp/
Live cam from Sodankyla, UCL colour aurora cam, updated every 2 minutes http://www.sgo.fi/
Kiruna all-sky camera, operated in Kiruna since 2001 located 67° 50'26.588"N, 20° 24'40.045"E, 425m above MSL http://www.irf.se/allsky/
Webcam from website of Leibniz Institute of Atmospheric Physics, university of Rostock Germany viewing 55N 13E http://www.iap-kborn.de/Webcams.79.0.html
Isle of Mull webcam ToUCam Pro II facing NNE, not always up but still a good resource for checking out Scotland Auroral activity http://www.marsport.org.uk/observatory/index.htm
Excellent aurora cam in Canada, Live feeds and archives http://www.asc-csa.gc.ca/eng/astronomy/auroramax/default.asp