There are two ways to earn with Adsense, one, through clicks on ads, and two ad impression. Some advertisers pay for clicks where as some pay for impression. You make most money through CPC (Cost Per Click) ads. To increase your earnings with Adsense, you need to focus on your Click Through Rate (CTR). This rate is determined by the number of clicks you get for every 100 visitors. A higher CTR generally leads to better earnings with Adsense.