User blog:James39562/Fan fic / speculation

Anybody know any good sites that have decent fan fiction on them? I'm interested in developing the Renesmee / Jacob interaction. I have some theories on how and why imprinting works, which would delve into Edward's and Bella's past. I have not even finished the series yet, but I have ideas bouncing around in my head that I would love to get out into the world for others to read. Of course, my ideas are probably far from mainstream, but I'd like to see people's thoughts on them anyhow.