Like vampires? I have series for you: Twilight by Stephenie Meyer.
The Twilight Saga, a vampire-themed series, is not only a huge success, but something more—People dress up like her characters, and write their own stories about the books and post them on the Internet. There are Twilight themed rock bands—The four books in the saga, Twilight (2005), New Moon (2006), Eclipse (2007) and Breaking Dawn, 2008 have, collectively, sold a reportedly 10 million copies. Her books have been praised for their exclusion of violence, drugs and sex. A fan club has been organized at Twilighters.org. A film is scheduled for release in December 2008.