I've got a feeling some sponsors credit your for sales you didn't make..
I tried a new sponsor the other day.. From one gallery, with (IMHO) pretty shitty content, I made 2 sales the first 30 hits. 2x revshare, $3.30 (trial)
From a sponsors point of view; spending $6.60 to 'convince' a webmaster to keep sending traffic to you isn't such a bad deal
Or maybe I'm just paranoid..
