The Island of Doubt was the blog of James Hrynyshyn, and it dealt with environmental issues, and especially the politics of denialism. Well, James has shut down Island of Doubt and started a new blog called "Class M." That new blog is here.
James is one of those people I've come to trust for information about environmental, climate, energy, and related issues. Plus he's a genuinely nice guy. I've had the fortune of spending a fair amount of time with him at the ScienceOnline conferences, and that has been very enjoyable.
Go check out Class M. James intends for this new blog to be fairly specialized and focuses in certain key issues, to be very science oriented, and to mainly serve as a conduit between the peer reviewed literature and the interested citizen. I expect Class M to be the go to place for journalists and policy makers interested in the topics he covers.