PinkWorld sends me huge traffic, but the pass is NOT a guaranteed listing. Even the huge traffic it does not make me so much sales.
But with PAs you can never know: it builds up with time. Xnxx underlines this part if you check them for a PA.
Shemp & Tommy: I just heard legends of their traffic. Just got my Shemp Pass today.
PicHunter: Very strict system. You have to submit for a long time before your reputation will increase but for those who keep the rules and do good work its golden.
Yobt: if you google "free porn", the first is Yobt.
TGP Alliance: two month minimum payment, traffic build up slowly, but quality is fine!
Peace