NASA
Nasa: El Nino
A concise explanation of El Nino. Discusses global wind patterns and ocean temperatures. Offers interactive weather-related learning activities.
University Corporation for Atmospheric Research
Ucar: Fact Sheet for El Nino
This site from the Univ. Corp. for Atmospheric Research provides detailed information on El Nino and its effects on the trade winds is offered at this site, with satellite photos.
CK-12 Foundation
Ck 12: Earth Science: Global Wind Belts Study Guide
Review the main global winds using this study guide.
University Corporation for Atmospheric Research
Ucar: The 1991/1992 Drought
This site from the University Corporation for Atmospheric Research offers information on drought and global climate conditions, with an explanation of the trade winds.
Other
Stormfax: El Nino Glossary
This site offers definitions for terms related to El Nino, including information on southern oscillation and its relationship to the trade winds.
NOAA
Noaa: Pmel: Definitions of El Nino, La Nina and Enso
In defining the terms El Nino, La Nina and ENSO, this site describes the relationship between the trade winds and these conditions.