Arthur Frommer Answers All Your Travel Questions, and Then Some - Freakonomics - Opinion - New York Times Blog
I haven't been a fan of Freakonomics moving to the NYT Blog roll because the feeds are only partially syndicated so I read the first few lines via Google Reader and then have to go to another page to finish. Few posts make that cut, but this one is good and insightful on tourism from someone who wrote the book.