If you are, I suggest the following sites as worthwhile time fillers:
If you’re interested in balanced and very interesting discussions of the Constitution and federal/state relations, the Federalist Society’s website in general and it’s multi-media offerings in particular are a must. They strive to offer a view from both sides of most important legal issues, especially at their various events. I can’t recommend them enough.
Also of constitutional interest, it’s hard to beat Oyez.org, the place to go if you want to actually listen to oral arguments at the Supreme Court. No, you can’t listen to them as they happen, but I’ve seen cases where the recordings were up the same day they happened. And these recordings go waaaaay back, even as far as Roe v. Wade (where you can hear counsel from the state of Texas make a sexist joke) and New York Times v. Sullivan (where you can hear the historical beginnings of our current law of defamation).