Partner group Oceana, who already have an excellent website, have just opened up a blog which is run by Jason Lefkowitz. This is how a genuine mass movement for ocean conservation arises -- with lots of these blog type things cropping up all over the place. The idea of daily discourse helps feed the flames of a developing movement. Just ask the people from the Howard Dean campaign who showed the country how this works last year.
I recommend you add their blog to your daily list of sites to check out.