Online Oceanography textbook:
http://oceanworld.tamu.edu/resources/ocng_texbook/contents.html

Oceanography Glossary:
http://stommel.tamu.edu/~baum/paleo/ocean/ocean.html

Glossary: Carbon Dioxide and Climate:
http://cdiac.ornl.gov/glossary.html#R.

Global Carbon Animations:
http://geography.uoregon.edu/envchange/clim_animations/

Nice Journal with intro/review papers on Oceanography:
http://www.tos.org/oceanography/issues/archive.html

IPCC Reports:
http://www.grida.no/publications/other/ipcc_tar/?src=/climate/ipcc_tar/

Resources for teaching climate change:
http://serc.carleton.edu/NAGTWorkshops/climatechange/recommended.html