Annotated New York Times
The Annotated New York Times is the best interface for blog coverage out there. Feedster and Technorati are leagues behind in their presentation compared to this. I had not been to BlogRunner in a while, but it has grow-up too. The interface, interaction, and presentation are dead-on for an intuitive tool. Bravo.
I do wish it were easier to find book review annotations more easily, such as by author or book title.