Please take a look at the image highlighting the different ad placements available.  Naturally those above the average page fold would receive the peak number of impressions, but we have no doubt that those that are below it receive a nice amount of impressions as well.

Our ads are managed by Project Wonderful because their unique system which enables us to allow our advertisers to place their ads on the site when they want them to show, and by bidding what they’d be willing to pay to beat out the other competition for the ad placements.

To do this, you just place a bid in our site’s auction. Bidding is a fast and easy process where you tell us two important pieces of information: what you want to pay, and when you want to pay it.

Our system examines all bids, every second of every day. If you’re the person willing to pay the most at that moment, your ad is displayed on the site! It’s really as easy as that. You’re only charged for the time in which your ad is the high bidder - and all charging is done to the nearest second.