How Popular Are Amazon’s Kindle Singles?

The New York Times ran a fascinating profile of David Blum, the editor of Amazon’s “Kindle Singles” store. But along the way, they also took a look at the whole phenomenon of Singles—and what it means for the future of books. Amazon has sold nearly 5 million Kindle singles over the last 27 months, according to the article about Blum, who tells the newspaper that “Every day I become more obsessed with how brilliant the concept is…” But it’s got me wondering just how popular the Kindle Singles really are…