Divergent Book and Movie Fansite
I'm not sure if someone has pointed it out before, but UserBasedCasting.com added Divergent to their website a few months back! You can "audition" for Divergent characters by uploading audition videos, and enter voting cycles where people vote for who they think should play who.
It doesn't determine who will get into the real Div. movie; but it's a looooad of fun <3
So... Go check it out! There's some amazing Tris' vids up already.