I recently came across the NOAA Ocean Explorer site. Floridians know NOAA primarily for the "atmospheric" part of their name, so it's cool to see what the "oceanographic" side of the organization is doing.

They undertake undersea research expeditions, and their site is a terrific educational tool, filled with easy to understand explanations and marvelous photos. It's a great example of how a scientific agency agency can use the web to enlighten the public and provide a publc service, too. Well, if you like cool pictures of lost cities and jaguar sharks, that is.