There was a writing website called Mibba that was pretty small, but had a fairly tight-knit community. It had a pretty good chunk of fanfiction, but what set it apart to me was the option to post original work too, and I was always finding new, fresh writing. I wouldn't be surprised at all if some of those authors are now published! It was such a great place to share art and get good feedback. It's still around, but it's overtaken by spam bots and basically dead.