this is what i'm struggling with as well..
for instance
day 1 - 10 clicks - 10,000 impressions - 0.1% ctr
day 2 - 5 clicks - 50,000 impressions - 0.01% ctr
day 3 - 3 clicks - 100,000 impressions - 0.00% ctr
Now we will only able to get the report for day 1 on the third day, and report for day 2 on the forth day.. By the time i get my hands on the report to see where all the traffic were coming from.. my CTR is already FUCKED and will not get clicks on the following day....
what's the cure?
and talking about site placement targetting.. i can't seem to get it work, either i pay too much for cpm or will not get any traffic going by the cpc route...
urrggghhh!!!!