Bookhu
Simply put, Bookhu is a gender compatibility portal that revolves around a specific subject: books. Through it, finding out which books are popular among the female and the male buying public is something very easy, and also quite engaging. You can check out a “Top 100 Bestsellers in All Books” category and see both an “average male rating” and an “average female rating” while you are informed about which gender the book is more popular with. You can also read reviews at Amazon.com in order to have something of a better insight on each particular title.