There used to be the one, but it's no longer completely user generated (or at least in the same objective way I try to do here).
You can read in the OP the following:
This year we're going to do things a "bit" different. Independent user scores will be combined with an accumulation of opinions found within bitcointalk to generate a more accurate rank of the best bitcoin sports betting sites.
In the thread I'm managing, only user votes that are posted here are counted. Some users even express their opinion in this thread and don't vote, and I let them know that unless they objectively vote for the sports book (using the voting system expressed in the OP), their opinion will not be reflected in the ranks (simply because I can't express their opinion in a number and calculate an average score).
Not saying this is a good thing or a bad thing, and I'm not claiming that my thread is better than that one or not. Just saying this thread is different from that one, because the ranks showed in the OP are completely objective and user generated (they need to rank it with a number and they need to do it here). I can't search for votes on other threads, because the rank I have here has a meaning that is also explained in the OP, so users need to vote here.
I wished it had more votes, but I can't control that.
I appreciate that you took the time to vote, and please remember that you can change or add new votes any time you want. this is also important in order to try to keep the ranks accurate.
As for the errors you are getting I will check the sites. I just gather the votes, and I don't review them, so maybe they are not working anymore.
I removed directbet because I was aware that they closed, I will do the same with those and list it in the changelog.
Thank you for reporting.
All ranks have been updated until this post.