Google launches today Ocean, a new feature that allow user of their famous 3-D mapping software Google Earth 5.0 to navigate even underwater.
New "layers" to the satellite-based software include topographic maps of the seafloor; locations of shipwrecks and algal blooms; and even maps of the tiny phytoplankton that provide the bulk of the ocean's food chain. Within the layers, users can explore multimedia features that combine data and maps with videos, quizzes, and other interactives brought by Media Partners like National Geographic, BBC Earth, Cousteau Society, ARKive, just to tell you some.
However the best way to understand this new project is viewing the following interview to the two original creators, Silvia Earle and John Hanke:



Some screenshots of Natinal Geographic features: