Cost Per Impression (CPM)

Here, you are paid according to the number of times the advertiser's banner is displayed on your site. The amount you earn is typically calculated based on the number of thousand impressions of the banner (impressions = number of times the banner is displayed), often abbreviated CPM (cost per thousand, with the M being the Latin numeral for thousand). That is, $5 CPM means that you get paid $5 for 1,000 displays of the banner. In general, the amount paid is usually small, but it is easy to earn since everytime a visitor loads the page, you earn. This is known as a "high conversion rate". Needless to say, this method will allow you to automatically earn more if your site attracts a lot of visitors.