adsense is one of the largest money maker in the internet moreover it is not a scam, but if you want to earn money from adsense you need to improve your blog and place your adsense in the strategic area as i do in my blog, if you need an example see my site cyber-avans.blogspot.com, there i place an adsense in the post area and in the side bar, i also place this ads as a menu link below the header