ScienceBlogs
Some of the better science blogs are now congregating together at ScienceBlogs, which will make it easier to find good quality science postings. I have some minor niggles on the layout design: it's a fairly bland layout (and they all have much the same layout, so some individuality has definitely been lost), and the text size is a little too small compared to most sites (so they all have the text size too small … did I mention that individuality had been lost?).