I was doing an assignment for e-commerce in college and my I.T. teacher started a conversation about search engines. We talked about how businesses got traffic coming in via PPC and then the conversation turned to Adsense. I told my teacher about how I made $120 on my site using Adsense when I ranked for a small niche site. He then told me a story about another teacher he used to work with at another college. He said that the other teacher (female) made a simple one page site with one article about a disease. Completely random article. She stuck on Adsense ads on it. Funny part: She then told her class to do an assignment which was to go on her website and click the ads. loooool. Needless to say she made $3,000 that month alone and received a check. Her account got banned soon after. Just thought I'd share it as I found it quite funny.