A Good News/Weird News Scenario May 9, 2005 @ 6:30pm by Stephen J. Dubner The good news is that Freakonomics is one of Amazon.com’s most popular products in hardcover, on audio CD, and even as a digital download. In hardcover, the other top-sellers include Harry Potter, You: The Owner’s Manual, and so on. On audio CD, it keeps company with a Spanish-language course and a James Patterson thriller. But (and here’s the weird news) in digital form, Freakonomics is nestled among a number of titles that — well, see for yourself. Explanations?