Our ad system is automated, rotating all ads in our database that matches specified section on the page. If you want your advert to show on the top banner, our system allocates space for you from the starting period of your ad till the end. Our system also uses an automated bidding system to allocate space; the higher your bid the higher the number of times your ad will be displayed. Given our huge traffic, we have enough users to accommodate as many views per day as possible.