A blog that keeps up on who is reading what on the New York subway. Adding the physical description — F, 20s with a blue hat and fire red hair — of the person reading the book is just genius. It's like a real-life version of stereotyping people by their favorite author.
http://laurenleto.wordpress.com/readers-by-author/
For anyone who has ever wondered if they were being judged for reading Dan Brown on the subway. For Instance, I apparently own a straw chair, can quote Comic Book Guy from The Simpsons, and ejaculate prematurely.