More information on pinnipeds worldwide:

Earth Island Institute, International Marine Mammal Project

More information on pinnipeds in California:

The Marine Mammal Center, Sausalito, CA

Friends of the Elephant Seal, Cambria, CA

Gulf of the Farallones Marine Sanctuary Association

Richmond Bridge Harbor Seal Survey

More information on marine mammals:

The International Marine Mammal Association

Whale Watch Operators Association Northwest

Puget Sound Shorelines

Caring for all animals:

San Diego Animal Advocates

Animals & Society Institute

Viewing Protected Marine Species in the Wild, (NMFS)

Watchable Wildlife

More information on marine life and the marine environment:

The Birch Aquarium at Scripps

Scripps Institution of Oceanography

NOAA and NMFS pages:

National Oceanic and Atmospheric Administration

The National Marine Sanctuary Program

National Marine Fisheries Service

National Marine Mammal Laboratory (NOAA)

NMFS Office of Law Enforcement Education & Outreach