These are the websites that I have found with good information on how you can help pick up the oil:
www.zunasurf.com/oilspill/
zunasurf.wordpress.com/
www.zunasurf.com/oilspill/surfrider

These websites are helpful too, and they are recruiting volunteers for other oil spill related projects including tracking down oiled wildlife. They do not have leads on oil cleanup because they suggest that you do not go to the beach to clean up the oil unless you are HAZMAT certified.
www.baykeeper.org/
www.vetmed.ucdavis.edu/owcn/

I am finding even more volunteer opportunities here and there from different sources. If you are interested in hearing about them, please contact me.