The EPA has a special website dedicated to the BP spill in the Gulf of Mexico. The EPA deployed the ASPECT, a twin engine aircraft designed to assist in the collection of air sampling data as well as photo documentation of environmental incidents. You can view the ASPECT data in Google Earth - there are links to the data on the site, adownload for the Google Earth program and a document explaining how to use ASPECT Google Earth data to find oil locations.
Check it out:
http://www.epa.gov/bpspill/
