Book excerpt: Fan CULTure explores how present-day fans interact with the films, television shows, books, and pop culture artifacts they love. From creating original works of fanfiction to influencing the content of major primetime series through social media, fans are no longer passive consumers. They have evolved into active participants in creating and shaping these works. The all-new essays in this collection provide in-depth analyses of how fans interact with such popular franchises as Harry Potter, Lost, Supernatural, Lord of the Rings and Joss Whedon's Serenity, and examines as well topics not based on media-like fans of LEGO building blocks, Disneyland, and NFL quarterback Tim Tebow.