National Oceanic and Atmospheric Administration
     Idealized ENSO Animation, (881K)
     Weekly SST Anomalies, (25K)
     Forecast SST Anomaly (3 Month Average), (15K)
     JAVA Animation of TAO SST and Winds

National Aeronautics and Space Administration
     SST Anomaly Progression, (140K)
     September 5, 1997 SST Anomaly, (93K)

United States Army Corps of Engineers
     Normal vs. El Nino Conditions, (10K)
     Non-El Niño Conditions, (16K)
     El Nino Events - Severity vs. Year, (185K)
     Rainfall Pattern During an El Nino, (63K)

United States Navy Fleet Numerical Meteorology and Oceanography Center
     Sea Surface Temperatures (SST)

University of California at San Diego
     Pictures of the Forecast

Florida State University
     El Niño Resources: Movies & Animated Gifs
     ENSO ENSO Research Topics at COAPS

Other Sources
     Observing El Niño in Sea Surface Temperatures, University of Illinois at Urbana-Champaign