NOAA Ocean Surface Current Analyses - Real Time (OSCAR) - Features near-realtime ocean surface currents derived from satellite altimeter and scatterometer data. Offers user-customisable graphics, data downloads, project descriptions, and related links.
Ocean Surface Currents - Provides an introduction to ocean gyres as well as specifics about ocean surface currents by basin.
Rapid Climate Change (RAPID) - Examining the probability and magnitude of future rapid change in climate, focusing on the role of the Atlantic Ocean's thermohaline circulation.