Gulf Sea Grant Oil Spill Website:
Comprehensive website put together by all 5 Gulf State Sea Grant Programs: Links to lots of education resources such as the Bridge, NOAA websites, Exxon Valdez materials etc.
NOAA Education Resources Website
(ironically, this particular NOAA site isn't linked from the Sea Grant website)
Includes oil spill multimedia resources, lessons and activities, real world data, background information.
Oil Spill Fact Sheets
These are the fact sheets I included in the folders plus many more. Most are only 1 to 2 pages and cover a wide variety of topics. Good for students.