Here's a great link for public land issues and recration access with updated news and press releases. Thought others here might enjoy having this as a resource -
John Stewart runs muirnet. He also is a frequent contributor of information at the pirate4x4 land use folder (the only thing good at pirate).
He is the Natural Resources Consultant for California Association of 4wd Clubs and the Director of Environmental Affairs for United Four Wheel Drive Associations.