I find fanfiction.net to be a good source for finding fanfictions in general. You can narrow your search by first choosing a catagory(anime, books, movies, tv shows, etc.) then by cross-over or normal. Then you can narrow it down further by genre(romance, action, suspence, etc.), and specific characters. Options for length, language, rating, and whether it's in-progress or complete. It also features reviews from readers. If you are looking for something specific it's good at that.
Anime fanfictions are fan fictions written about anime characters.
I would say Dreaming Of You is a really good one.
There's a couple of good fan-fictions with Johnny Christ on www.mibba.com, but you have to be a member to read them.
Please see the Related Link(s) below for a list of Gaara FanFictions.
WAY too many to count my friend.
They are called fan-fictions, there are thousands of them.
No, the coupling of Tyson and Mariah only exists in Fan Fictions.
yes
there are many fan-written books called fan-fictions based on Harry Potter
In "Fight to the Finish", Jeremie made a multi-agent (MA) program that wiped XANA out. In a few Fan Fictions, XANA is made a good guy.
go to fanfiction.net and read anything by Gudbooks.
Charmed ended but there are still many Fan Fictions that are being written.