National Geographic -From this website you can learn what it takes to actually become a Marine Biologist and even has some personal testimonies.
Science Buddies -Here you are able to explore different aspects of being a Marine Biologist. (See the various subgroups of Marine Biology.)
Video Watches this fun informative video on Marine Biologists
Test Your Knowledge - After exploring the various resources (even ones you find on your own) play some games and retest your knowlegde with these fun games and quizzes.