How have I missed this for so long?
Emily Lakdawalla is the science and technology coordinator for the Planetary Society, and is a pretty good writer. She has a blog, where she writes about things, well, planetary. She's currently blogging about the Division of Planetary Science meeting in Cambridge, England, and reporting on all sorts of fascinating results. Titan, Mars, asteroids, Saturn's moons, Pluto... scientists are studying cool stuff. Check it out.