Implying that the audience one is trying to reachReach1) unique users that visited the site over the course of the reporting period,…//read more  is defined by particular demographicsDemographicsCommon characteristics used for population or audience segmentation, such as…//read more  or other specific characteristics, such as male golfers age 18-25. The difference between CPMCPM (Cost per mille)Online advertising can be purchased on the basis of what it costs to show the…//read more  and CPTMCPTM (Cost per Targeted Thousand Impressions)Implying that the audience one is trying to reach is defined by particular…//read more  is that CPM is for gross impressions, while CPTM is for targeted impressions.