Hi, can someone give me an indication of what a poor/average/great click thru rate is for a someone gets shown my popup and clicks through (for ppv)? I realize this figure may be relative, but i'd like to know which ones to delete....or for that matter, if any of them are high enough. Im seeing between .50-4% fluctuating....and its the higher volume kw's in the the half percent range... seems too low but I wouldnt know. Also, is there a difference between the "normal" ctr for ppv vs. ppc? I only ask since ppv is interruption based and I would think that its harder to get someone to click unless they have been "persuaded" 
I'd recommend cutting on ROI for a while (in other words, cut based on what ads are making you money) until you get a sense of what your usual conversion rate will be. From there, you can work backward to figure out what a good and bad CTR is for your niche - I've got a post on this going up in the Step By Step Guide today.