Making a living off AdSense

The author of this blog has revealed that he is making $500 a year off AdSense. According to stats on his website, he gets around 200,000 page views a year so that makes it .25 cents per eyeball. By that estimate, if you were trying to run a self-sufficient website that cost you $20/month in hosting fees, you would need nearly 100,000 page views in a year or 270 page views a day. Some other datapoints: Russell Beatie's weblog and his earnings of $98 per month off AdSense. Also, aparently communications between Google and Adsense users are supposed to be confidential; I guess even Google can't control everything.