This is the EPA's main site for oil spill information. The site discusses its role in oil spill reports. Response and cleanup techniques are explained, but not in very much detail. One can also look at past spill information for damage information and response tactics used. Oil Stop is a manufacturer of oil spill cleanup equipment.
Product information is available.
The information is not fully technical. It is actually an on-line catalog consisting mostly of boom products used in oil spill cleanup. The NOAA offers this site to show the impact of oil spills on the environment. There is an essay here to download that discusses ways of preventing oil spills, but also talks in depth of response plans. The emphasis is on prevention.