Unique Impressions / Clicks – The summation of visitors
(based on user IP Address) that have seen or clicked an ad
for the very first time within a 24 hour period.
Raw Impressions / Clicks – The summation of visitors (based
on user IP Address) that have seen or clicked an ad more
than once within a 24 hour period.
Total Impressions / Clicks – The summation of Unique and Raw
Impressions / Clicks. In other words, the total number of
times an ad has been viewed or clicked.
Read our Guide at http://www.adpeeps.com/adpeeps_uniquevsraw.pdf