Check out Miss Snark, the Literary Agent. Her blog is pull no punches stuff. Very informative.
I've added links to the Book Reporter and Booksense. I think it's really important to keep up with the trends in genre fiction.
In addition, I've been updating my own blog, Burlesque of the Damned, with weekly book reviews, some freewriting and weird stuff I find on the internet.
So, pull up a chair and stay a while.