https://kalem-edlin.github.io/tierstra/
Tierstra is a new tierlisting web application that puts collaborative ranking first. Experience tierlist features you haven't seen before! Share you rankings of tierlists with your friends and get their opinions right back!
There is potential for an algorithm that predicts your rankings and your preferences on certain (pre-programmed) domain areas like Shoes, Clothes, Music Genres, ANYTHING based on other people's rankings!