This subject came up a couple of weeks ago and I apologise if the following was discussed and I just missed it, but...
It seems the U.S. National Park Service is going to begin collecting fees for all commercial photography soon. This announcement came up on April 13, and was the subject of this article: http://www.nppa.org/news_and_events/news/2006/04/fees.html I just learned about it while browsing through the Luminous Landscape web site. I like Michael Reichmann's take on the matter: "Fine Art and other non-commercial photographers should not be affected, but I've had enough run-ins with NP staff and rangers in the past to know that the sight of a tripod and pro level gear is going to elicit some heated debates in the days ahead. And, if you've ever tried to argue with a state trooper over a speeding ticket, you've already had a dress rehearsal for how those conversations are going to go."

