Extensive GIC site by Geological Survey of Canada GIC site by Swedish Institute of Space Physics Geomagnetic Storms and Impacts on Power Systems (article by J.G. Kappenman et al.) "Inverse" phenomenon of GIC: power line harmonic radiation < ORNL studies on GIC (short article) Power Failure in Canada During 1989 (by IPS Radio & Space Services) SUNBURST Today's space weather