I'd to use ExoClick and TrafficJunky to buy some traffic and I have a few questions. - I see Cost Per Impressions (CPM), is it only if the viewer click on the banner or even if he just sees it? For example if I bought 1,000 impressions, and 500 visit the page but only 2 click on it? will I still have 998 Impressions? - How many impressions is the CPM on TrafficJunky and ExoClick?