Shit's gonna get all educational up in here and there's nothing you can do to stop it.
Today, October 12, marks the beginning of the latest mission on America's only undersea science base, the Aquarius. 60 feet deep and 4 miles off the coast of Florida it's main purpose is to monitor reef health (as they reflect the health of the ocean at large) although it was also handy for monitoring the spread of the oil spill recently. There's a twitter feed, a blog, and frequent live video events, and (when they get around to fixing them) live webcams. If I've succeeded at getting you interested in the notion of manned science bases on the sea floor, you'll want to follow this mission.
For the next 9 days, from October 12th to 21st at 12pm, you can catch the live daily broadcasts covering mission progress at this link.