#2. Carl Zimmer
Blog: The Loom
Carl Zimmer is a bit of a legend in the science writing community. Not only does he write a successful blog, The Loom, but he also regularly contributes to the New York Times and other high-profile outlets. He is also the author of multiple books. Basically, he's the poster child of science writing success. Oh, and he has a strong affinity for nightmare-inducing parasites.