Whale Net 
Whale Net focuses on whales and marine research. The page comes in four different languages as well. Whether you are a student, a teacher, or just curious you can easily enjoy surfing through this site.
I highly recommend taking the Whale Net tour. It will give you a nice overview of the site features and it is well put together. Follow the links and have fun. I also think you’ll enjoy the satellite tracking section. Dive in!