Dominating the news headlines over the past few weeks has been the gigantic oil spill in the Gulf of Mexico. And now, as that oil reaches land, a huge effort is underway to protect wildlife and lessen the effects of this catastrophic event. To see how you can help in the clean up effort, check out Serve.gov's online tool, which will direct you to local efforts happening in four states. And, here is a longer list of organizations working on the ground to help clean up the spill. The effort needed will be massive, so every small step matters.