Legit websites to sell hair?

I have around 30in of hair that, originally, I was going to keep growing out for character at Renaissance festivals. But, that time is passed and I feel like it'll be quite a while yet before I actually feel like I want to go in character. Given all of the things I do about the house and outside, it gets majorly in the way, and even after putting it well up it can still hang down to the middle of my back. I need the cash anyway, and was intending to do this last year but never felt comfortable with it. Are there any legit websites where I could sell my hair?