Live Weather Images - Provides links to current weather images from the US and Europe.
GoWally.com Live Doppler Radars - Links to television station radars and other radar systems throughout the U.S.
IPS MeteoStar Radar - National and local radar images and loops for the United States. Includes Base Reflectivity, Vertical Integrated Liquid and Storm Total Rainfall images.
C2K's WeatherPage - Images of current weather, severe weather, radar, and satellite, viewed through WxViewer.