Orin Kerr at the Volokh Conspiracy is blogging on the PATRIOT Act.
The Volokh Conspiracy folks are law professors so its very interesting to see them comment on issues like the PATRIOT Act that are often heavily misrepresented by laymen. That doesn't mean the PATRIOT act is all sunshine and lollipops, but there is a lot of good stuff in there that deserves to be renewed. Its not the grand assault on civil liberties that people proclaim it to be.
UPDATE: Orin Kerr has posted another piece on the PATRIOT Act. This time he's specifically talking about criminal law and how the PATRIOT Act relates to it. It has some good links to commentary on PATRIOT by the ACLU.