Fanfiction

Fanfiction is fiction written by fans about a world and or universe created by a TV series, Movie, Book, Comic, Video Game and so forth. Basically, if you didn't create it, but you're writing about it, and it isn't recognized as canon, it is fanfiction.

Types of fanfiction
Fanfiction comes in a wide assortment of flavors. Two main packages that these flavors come in are goodfic and badfic.

These flavors include:
 * Alternate Universe
 * Crossover
 * MST