Here are some links to sources of reliable online climate data, tools and animations.

NOAA Climate Data Center NCAR/NCEP tools:
http://www.cdc.noaa.gov/Composites

NOAA National Oceanographic Data Center World Ocean Atlas:
http://www.nodc.noaa.gov/OC5/SELECT/woaselect/woaselect.html

Create your own plots and animations of SeaWiFS data products:
http://reason.gsfc.nasa.gov/OPS/Giovanni/ocean.seawifs.2.shtml

Watch how SeaWiFS captures patterns in the ocean:
http://oceancolor.gsfc.nasa.gov/SeaWiFS/HTML/SeaWiFS.BiosphereAnimation.html

Check out cholorphyll features in the ocean captured by the SeaWiFS satellite:
http://oceancolor.gsfc.nasa.gov/cgi/image_archive.cgi?c=CHLOROPHYLL