The DFG's mobile MPA site is overlaid on Bing maps.
http://www.dfg.ca.gov/m/MPA/Map
Disclosure: some people are uncomfortable accessing the mobile site from their phones while Location Services are enabled, figuring that the agency is compiling geolocation data, either anonomized or personally identifiable. It seems feasible, but given the agency's other entrenched inefficiencies due to chronic underfunding, if they were it is probably going into a black hole.