Sites that rate sponsors
 

Is there a list of sites that send some traffic to a few sponsors and then rate the sponsors (convertion, ppc payout etc)?

I saw some sites before that do this, but I just don't remember their URLs.

there are a few, but quite a lot have Ref codes and advertising available so could quite easily not be real results.

I list webcam sponsors with ratios.
All the links on my site have ref codes and could quite easily not be real results.

We don't have ratio in our directory, but we use an internal rating and put to the top of the list sponsors, who bring us more money.