NOAA
Noaa: Oil Spill Resources
An excellent collection of resources and activities for exploring oil spills and chemical disasters.
Smithsonian Institution
National Museum of Natural History: Ocean Planet: Oil Pollution
Source provides key facts and figures as well as pictures on various oil accidents. Site information is divided up into three categories: Sources, Accidents and Cleanups. This is part of an archived Smithsonian exhibit.
PBS
Pbs Kids: The Gulf Coast Oil Disaster
Why does the oil spill in the Golf of Mexico matter? What can you do? These are two of the topics discussed in the PBS Kds blog "The It's My Life Blog". (3 May 2010)
NOAA
Noaa: Environmental Restoration
Your questions answered about environmental restoration after chemical accidents. A large section is dedicated to oil spills and how they contaminate the earth. Great information.