bluemoonmedia.net has got some nice incent and non-incent offers (e-mail submits) for USA , especially gaming and merch related ones, I think they pay from ~$1,90 to ~$2,50 for each lead. If you can engage your audience and make them "believe" to get something - it might be worth a shot. EPC is based only on your performance, advertiser (dunno who it is but in my opinion that this is the best advertiser in the USA right now, because you can have up to ~1$. average EPC if you know what you're doing and bring nice traffic/numbers) is doing a traffic review after earning ~$300.