Hey! It looks like you're trying to write an original character for your fiction/fanfic/RPG, why not run it through The Universal Mary Sue Litmus Test and make sure you're not actually writing a self-insert wish-fulfillment fantasy.
Fan fiction has, arguably, existed in some form since 1614, and it has certainly been in existence since the Star Trek fanzine, Spockanalia was published in 1967, while derivative works and unofficial adaptations have long existed (such as Edison's Frankenstein) in the mass market, most obviously Nosferatu (unofficial trailer, whole film) and the infamous Tijuana bibles, but in the modern world of extended copyright and Internet commerce are fan fiction and fan art legal?
One of the most popular stories on the Amazon Kindle marketplace is ...Wesley Crusher Slash Fic?. (i09)
Time Magazine's Arts section features a nuanced look at fanfiction this week: Fan fiction is what literature might look like if it were reinvented from scratch after a nuclear apocalypse by a band of brilliant pop-culture junkies trapped in a sealed bunker. [more inside]
Fan Fiction and Moral Conundrums : Diana Gabaldon, author of the bestselling Outlander book series, takes on the legal and moral issues of fan fiction. She's got a lot of people to convince.
Gap model fan fiction: I don't care what any of you think. I found this amusing. Fan fiction takes on many bizarre forms. From Thundercats (example) to the Lion King (example), the web opens up a level of fan-to-fan community that gives new life to things that would probably be better off left dead. What's the wierdest piece of fan fiction cheese you have ever come across?